| datetime   | gage height        |
|------------|--------------------|
| 1998-10-01 | 2.65               |
| 1998-10-02 | 2.36               |
| 1998-10-03 | 2.36               |
| 1998-10-04 | 2.36               |
| 1998-10-05 | 2.36               |
| 1998-10-06 | 2.35               |
| 1998-10-07 | 2.35               |
| 1998-10-08 | 1.92               |
| 1998-10-09 | 1.55               |
| 1998-10-10 | 1.55               |
| 1998-10-11 | 1.55               |
| 1998-10-12 | 1.51               |
| 1998-10-13 | 1.5                |
| 1998-10-14 | 1.5                |
| 1998-10-15 | 1.5                |
| 1998-10-16 | 1.5                |
| 1998-10-17 | 1.5                |
| 1998-10-18 | 1.5                |
| 1998-10-19 | 1.49               |
| 1998-10-20 | 1.5                |
| 1998-10-21 | 1.5                |
| 1998-10-22 | 1.5                |
| 1998-10-23 | 1.49               |
| 1998-10-24 | 1.5                |
| 1998-10-25 | 1.5                |
| 1998-10-26 | 1.5                |
| 1998-10-27 | 1.5                |
| 1998-10-28 | 1.49               |
| 1998-10-29 | 1.49               |
| 1998-10-30 | 1.49               |
| 1998-10-31 | 1.48               |
| 1998-11-01 | 1.48               |
| 1998-11-02 | 1.48               |
| 1998-11-03 | 1.47               |
| 1998-11-04 | 1.47               |
| 1998-11-05 | 1.49               |
| 1998-11-06 | 1.49               |
| 1998-11-07 | 1.52               |
| 1998-11-08 | 1.5                |
| 1998-11-09 | 1.49               |
| 1998-11-10 | 1.49               |
| 1998-11-11 | 1.5                |
| 1998-11-12 | 1.5                |
| 1998-11-13 | 1.49               |
| 1998-11-14 | 1.49               |
| 1998-11-15 | 1.5                |
| 1998-11-16 | 1.5                |
| 1998-11-17 | 1.53               |
| 1998-11-18 | 1.52               |
| 1998-11-19 | 1.51               |
| 1998-11-20 | 1.5                |
| 1998-11-21 | 1.51               |
| 1998-11-22 | 1.52               |
| 1998-11-23 | 1.56               |
| 1998-11-24 | 1.54               |
| 1998-11-25 | 1.51               |
| 1998-11-26 | 1.53               |
| 1998-11-27 | 1.54               |
| 1998-11-28 | 1.52               |
| 1998-11-29 | 1.52               |
| 1998-11-30 | 1.73               |
| 1998-12-01 | 1.58               |
| 1998-12-02 | 1.46               |
| 1998-12-03 | 1.53               |
| 1998-12-04 | 1.53               |
| 1998-12-05 | 1.5                |
| 1998-12-06 | 1.51               |
| 1998-12-07 | 1.49               |
| 1998-12-08 | 1.46               |
| 1998-12-09 | 1.48               |
| 1998-12-10 | 1.49               |
| 1998-12-11 | 1.48               |
| 1998-12-12 |                    |
| 1998-12-13 |                    |
| 1998-12-14 |                    |
| 1998-12-15 |                    |
| 1998-12-16 | 1.49               |
| 1998-12-17 |                    |
| 1998-12-18 |                    |
| 1998-12-19 |                    |
| 1998-12-20 |                    |
| 1998-12-21 | 1.49               |
| 1998-12-22 | 1.48               |
| 1998-12-23 | 1.47               |
| 1998-12-24 | 1.46               |
| 1998-12-25 | 1.48               |
| 1998-12-26 | 1.43               |
| 1998-12-27 | 1.49               |
| 1998-12-28 | 1.51               |
| 1998-12-29 | 1.51               |
| 1998-12-30 | 1.51               |
| 1998-12-31 | 1.55               |
| 1999-01-01 | 1.53               |
| 1999-01-02 | 1.52               |
| 1999-01-03 | 1.46               |
| 1999-01-04 | 1.52               |
| 1999-01-05 | 1.52               |
| 1999-01-06 | 1.51               |
| 1999-01-07 | 1.51               |
| 1999-01-08 | 1.51               |
| 1999-01-09 | 1.51               |
| 1999-01-10 | 1.51               |
| 1999-01-11 | 1.51               |
| 1999-01-12 | 1.52               |
| 1999-01-13 | 1.52               |
| 1999-01-14 | 1.53               |
| 1999-01-15 | 1.55               |
| 1999-01-16 | 1.53               |
| 1999-01-17 | 1.55               |
| 1999-01-18 | 1.81               |
| 1999-01-19 | 1.67               |
| 1999-01-20 | 1.6                |
| 1999-01-21 | 1.5899999999999999 |
| 1999-01-22 | 1.55               |
| 1999-01-23 | 1.65               |
| 1999-01-24 | 1.62               |
| 1999-01-25 | 1.52               |
| 1999-01-26 | 1.51               |
| 1999-01-27 | 1.49               |
| 1999-01-28 | 1.49               |
| 1999-01-29 | 1.49               |
| 1999-01-30 | 1.49               |
| 1999-01-31 | 1.49               |
| 1999-02-01 | 1.48               |
| 1999-02-02 | 1.48               |
| 1999-02-03 | 1.49               |
| 1999-02-04 | 1.49               |
| 1999-02-05 | 1.49               |
| 1999-02-06 | 1.49               |
| 1999-02-07 | 1.57               |
| 1999-02-08 | 1.54               |
| 1999-02-09 | 1.54               |
| 1999-02-10 | 1.49               |
| 1999-02-11 | 1.47               |
| 1999-02-12 | 1.5                |
| 1999-02-13 | 1.5                |
| 1999-02-14 | 1.51               |
| 1999-02-15 | 1.51               |
| 1999-02-16 | 1.51               |
| 1999-02-17 | 1.51               |
| 1999-02-18 | 1.52               |
| 1999-02-19 | 3.03               |
| 1999-02-20 | 4.6                |
| 1999-02-21 | 4.77               |
| 1999-02-22 | 4.57               |
| 1999-02-23 | 4.75               |
| 1999-02-24 | 4.76               |
| 1999-02-25 | 4.78               |
| 1999-02-26 | 4.77               |
| 1999-02-27 | 4.78               |
| 1999-02-28 | 4.91               |
| 1999-03-01 | 4.84               |
| 1999-03-02 | 4.8                |
| 1999-03-03 | 4.8100000000000005 |
| 1999-03-04 | 4.8                |
| 1999-03-05 | 4.8                |
| 1999-03-06 | 5.17               |
| 1999-03-07 | 5.49               |
| 1999-03-08 | 5.49               |
| 1999-03-09 | 5.5                |
| 1999-03-10 | 5.5                |
| 1999-03-11 | 5.49               |
| 1999-03-12 | 5.49               |
| 1999-03-13 | 5.49               |
| 1999-03-14 | 5.48               |
| 1999-03-15 | 5.49               |
| 1999-03-16 | 5.5                |
| 1999-03-17 | 5.49               |
| 1999-03-18 | 5.49               |
| 1999-03-19 | 5.5                |
| 1999-03-20 | 5.49               |
| 1999-03-21 | 5.48               |
| 1999-03-22 | 5.48               |
| 1999-03-23 | 5.15               |
| 1999-03-24 | 5.63               |
| 1999-03-25 | 5.63               |
| 1999-03-26 | 5.64               |
| 1999-03-27 | 5.44               |
| 1999-03-28 | 5.63               |
| 1999-03-29 | 3.42               |
| 1999-03-30 | 1.65               |
| 1999-03-31 | 2.08               |
| 1999-04-01 | 4.33               |
| 1999-04-02 | 5.71               |
| 1999-04-03 | 5.72               |
| 1999-04-04 | 5.71               |
| 1999-04-05 | 5.7                |
| 1999-04-06 | 5.71               |
| 1999-04-07 | 5.68               |
| 1999-04-08 | 5.69               |
| 1999-04-09 | 5.7                |
| 1999-04-10 | 5.69               |
| 1999-04-11 | 5.7                |
| 1999-04-12 | 5.69               |
| 1999-04-13 | 5.71               |
| 1999-04-14 | 5.71               |
| 1999-04-15 | 5.68               |
| 1999-04-16 | 4.63               |
| 1999-04-17 | 3.16               |
| 1999-04-18 | 3.15               |
| 1999-04-19 | 3.16               |
| 1999-04-20 | 3.16               |
| 1999-04-21 | 3.16               |
| 1999-04-22 | 3.17               |
| 1999-04-23 | 2.75               |
| 1999-04-24 | 2.25               |
| 1999-04-25 | 2.25               |
| 1999-04-26 | 2.26               |
| 1999-04-27 | 2.26               |
| 1999-04-28 | 2.26               |
| 1999-04-29 | 2.25               |
| 1999-04-30 | 2.25               |
| 1999-05-01 | 2.24               |
| 1999-05-02 | 2.26               |
| 1999-05-03 | 2.27               |
| 1999-05-04 | 2.67               |
| 1999-05-05 | 2.96               |
| 1999-05-06 | 2.94               |
| 1999-05-07 | 2.94               |
| 1999-05-08 | 2.94               |
| 1999-05-09 | 2.94               |
| 1999-05-10 | 2.94               |
| 1999-05-11 | 3.01               |
| 1999-05-12 | 3.14               |
| 1999-05-13 | 3.24               |
| 1999-05-14 | 3.24               |
| 1999-05-15 | 3.25               |
| 1999-05-16 | 3.24               |
| 1999-05-17 | 3.24               |
| 1999-05-18 | 3.33               |
| 1999-05-19 | 3.42               |
| 1999-05-20 | 3.41               |
| 1999-05-21 | 3.41               |
| 1999-05-22 | 3.41               |
| 1999-05-23 | 3.41               |
| 1999-05-24 | 3.42               |
| 1999-05-25 | 3.42               |
| 1999-05-26 | 3.43               |
| 1999-05-27 | 3.42               |
| 1999-05-28 | 3.43               |
| 1999-05-29 | 3.29               |
| 1999-05-30 | 3.42               |
| 1999-05-31 | 3.42               |
| 1999-06-01 | 3.43               |
| 1999-06-02 | 3.43               |
| 1999-06-03 | 3.35               |
| 1999-06-04 | 3.25               |
| 1999-06-05 | 3.25               |
| 1999-06-06 | 3.26               |
| 1999-06-07 | 3.26               |
| 1999-06-08 | 3.27               |
| 1999-06-09 | 3.15               |
| 1999-06-10 | 3.3                |
| 1999-06-11 | 3.36               |
| 1999-06-12 | 3.36               |
| 1999-06-13 | 3.41               |
| 1999-06-14 | 3.46               |
| 1999-06-15 | 3.46               |
| 1999-06-16 | 3.45               |
| 1999-06-17 | 3.45               |
| 1999-06-18 | 3.44               |
| 1999-06-19 | 3.44               |
| 1999-06-20 | 3.44               |
| 1999-06-21 | 3.39               |
| 1999-06-22 | 3.35               |
| 1999-06-23 | 3.34               |
| 1999-06-24 | 3.26               |
| 1999-06-25 | 3.19               |
| 1999-06-26 | 3.19               |
| 1999-06-27 | 3.19               |
| 1999-06-28 | 3.19               |
| 1999-06-29 | 3.07               |
| 1999-06-30 | 3.19               |
| 1999-07-01 | 3.19               |
| 1999-07-02 | 3.24               |
| 1999-07-03 | 3.3                |
| 1999-07-04 | 3.29               |
| 1999-07-05 | 3.29               |
| 1999-07-06 | 3.29               |
| 1999-07-07 | 3.29               |
| 1999-07-08 | 3.29               |
| 1999-07-09 | 3.29               |
| 1999-07-10 | 3.29               |
| 1999-07-11 | 3.29               |
| 1999-07-12 | 3.29               |
| 1999-07-13 | 3.34               |
| 1999-07-14 | 3.4                |
| 1999-07-15 | 3.4                |
| 1999-07-16 | 3.4                |
| 1999-07-17 | 3.4                |
| 1999-07-18 | 3.4                |
| 1999-07-19 | 3.33               |
| 1999-07-20 | 3.27               |
| 1999-07-21 | 3.27               |
| 1999-07-22 | 3.27               |
| 1999-07-23 | 3.27               |
| 1999-07-24 | 3.27               |
| 1999-07-25 | 3.27               |
| 1999-07-26 | 3.27               |
| 1999-07-27 | 3.27               |
| 1999-07-28 | 3.27               |
| 1999-07-29 | 3.32               |
| 1999-07-30 | 3.39               |
| 1999-07-31 | 3.39               |
| 1999-08-01 | 3.39               |
| 1999-08-02 | 3.38               |
| 1999-08-03 | 3.38               |
| 1999-08-04 | 3.38               |
| 1999-08-05 | 3.38               |
| 1999-08-06 | 3.25               |
| 1999-08-07 | 3.32               |
| 1999-08-08 | 3.26               |
| 1999-08-09 | 3.26               |
| 1999-08-10 | 3.19               |
| 1999-08-11 | 3.14               |
| 1999-08-12 | 3.14               |
| 1999-08-13 | 3.14               |
| 1999-08-14 | 3.05               |
| 1999-08-15 | 2.9699999999999998 |
| 1999-08-16 | 2.9699999999999998 |
| 1999-08-17 | 2.9699999999999998 |
| 1999-08-18 | 2.9699999999999998 |
| 1999-08-19 | 2.9699999999999998 |
| 1999-08-20 | 2.9699999999999998 |
| 1999-08-21 | 3.06               |
| 1999-08-22 | 3.15               |
| 1999-08-23 | 3.15               |
| 1999-08-24 | 3.15               |
| 1999-08-25 | 3.15               |
| 1999-08-26 | 3.15               |
| 1999-08-27 | 3.2                |
| 1999-08-28 | 3.26               |
| 1999-08-29 | 3.26               |
| 1999-08-30 | 3.26               |
| 1999-08-31 | 3.27               |
| 1999-09-01 | 3.27               |
| 1999-09-02 | 3.27               |
| 1999-09-03 | 3.26               |
| 1999-09-04 | 3.27               |
| 1999-09-05 | 3.27               |
| 1999-09-06 | 3.27               |
| 1999-09-07 | 3.27               |
| 1999-09-08 | 3.26               |
| 1999-09-09 | 3.26               |
| 1999-09-10 | 3.26               |
| 1999-09-11 | 3.26               |
| 1999-09-12 | 3.23               |
| 1999-09-13 | 3.2                |
| 1999-09-14 | 3.2                |
| 1999-09-15 | 3.19               |
| 1999-09-16 | 3.2                |
| 1999-09-17 | 3.2                |
| 1999-09-18 | 3.2                |
| 1999-09-19 | 3.2                |
| 1999-09-20 | 3.2                |
| 1999-09-21 | 3.2                |
| 1999-09-22 | 3.2                |
| 1999-09-23 | 3.2                |
| 1999-09-24 | 3.2                |
| 1999-09-25 | 3.2                |
| 1999-09-26 | 3.19               |
| 1999-09-27 | 2.25               |
| 1999-09-28 | 1.62               |
| 1999-09-29 | 1.6                |
| 1999-09-30 | 1.6                |
| 1999-10-01 | 1.6                |
| 1999-10-02 | 1.5899999999999999 |
| 1999-10-03 | 1.58               |
| 1999-10-04 | 1.5899999999999999 |
| 1999-10-05 | 1.5899999999999999 |
| 1999-10-06 | 1.6099999999999999 |
| 1999-10-07 | 1.6099999999999999 |
| 1999-10-08 | 1.6099999999999999 |
| 1999-10-09 | 1.6                |
| 1999-10-10 | 1.5899999999999999 |
| 1999-10-11 | 1.58               |
| 1999-10-12 | 1.57               |
| 1999-10-13 | 1.57               |
| 1999-10-14 | 1.57               |
| 1999-10-15 | 1.57               |
| 1999-10-16 | 1.57               |
| 1999-10-17 | 1.57               |
| 1999-10-18 | 1.5899999999999999 |
| 1999-10-19 | 1.53               |
| 1999-10-20 | 1.5899999999999999 |
| 1999-10-21 | 1.57               |
| 1999-10-22 | 1.58               |
| 1999-10-23 | 1.58               |
| 1999-10-24 | 1.5899999999999999 |
| 1999-10-25 | 1.5899999999999999 |
| 1999-10-26 | 1.6                |
| 1999-10-27 | 1.6099999999999999 |
| 1999-10-28 | 1.5899999999999999 |
| 1999-10-29 | 1.5899999999999999 |
| 1999-10-30 | 1.6                |
| 1999-10-31 | 1.58               |
| 1999-11-01 | 1.56               |
| 1999-11-02 | 1.55               |
| 1999-11-03 | 1.56               |
| 1999-11-04 | 1.56               |
| 1999-11-05 | 1.56               |
| 1999-11-06 | 1.56               |
| 1999-11-07 | 1.56               |
| 1999-11-08 | 1.55               |
| 1999-11-09 | 1.55               |
| 1999-11-10 | 1.55               |
| 1999-11-11 | 1.55               |
| 1999-11-12 | 1.54               |
| 1999-11-13 | 1.53               |
| 1999-11-14 | 1.54               |
| 1999-11-15 | 1.53               |
| 1999-11-16 | 1.56               |
| 1999-11-17 | 1.56               |
| 1999-11-18 | 1.55               |
| 1999-11-19 | 1.56               |
| 1999-11-20 | 1.56               |
| 1999-11-21 | 1.56               |
| 1999-11-22 | 1.57               |
| 1999-11-23 | 1.57               |
| 1999-11-24 | 1.57               |
| 1999-11-25 | 1.57               |
| 1999-11-26 | 1.57               |
| 1999-11-27 | 1.57               |
| 1999-11-28 | 1.57               |
| 1999-11-29 | 1.57               |
| 1999-11-30 | 1.57               |
| 1999-12-01 | 1.56               |
| 1999-12-02 | 1.55               |
| 1999-12-03 | 1.55               |
| 1999-12-04 | 1.55               |
| 1999-12-05 | 1.56               |
| 1999-12-06 | 1.56               |
| 1999-12-07 | 1.56               |
| 1999-12-08 | 1.56               |
| 1999-12-09 | 1.53               |
| 1999-12-10 | 1.54               |
| 1999-12-11 | 1.55               |
| 1999-12-12 | 1.55               |
| 1999-12-13 | 1.52               |
| 1999-12-14 | 1.52               |
| 1999-12-15 | 1.53               |
| 1999-12-16 | 1.54               |
| 1999-12-17 | 1.53               |
| 1999-12-18 | 1.51               |
| 1999-12-19 | 1.51               |
| 1999-12-20 | 1.53               |
| 1999-12-21 | 1.51               |
| 1999-12-22 | 1.51               |
| 1999-12-23 | 1.51               |
| 1999-12-24 | 1.51               |
| 1999-12-25 | 1.51               |
| 1999-12-26 | 1.51               |
| 1999-12-27 | 1.5                |
| 1999-12-28 | 1.5                |
| 1999-12-29 | 1.5                |
| 1999-12-30 | 1.52               |
| 1999-12-31 | 1.51               |
| 2000-01-01 | 1.51               |
| 2000-01-02 | 1.51               |
| 2000-01-03 | 1.51               |
| 2000-01-04 | 1.49               |
| 2000-01-05 | 1.5                |
| 2000-01-06 | 1.5                |
| 2000-01-07 | 1.5                |
| 2000-01-08 | 1.5                |
| 2000-01-09 | 1.51               |
| 2000-01-10 | 1.54               |
| 2000-01-11 | 1.58               |
| 2000-01-12 | 1.53               |
| 2000-01-13 | 1.54               |
| 2000-01-14 | 1.55               |
| 2000-01-15 | 1.56               |
| 2000-01-16 | 1.58               |
| 2000-01-17 | 1.54               |
| 2000-01-18 | 1.55               |
| 2000-01-19 | 1.49               |
| 2000-01-20 | 1.54               |
| 2000-01-21 | 1.53               |
| 2000-01-22 | 1.52               |
| 2000-01-23 | 1.53               |
| 2000-01-24 | 1.65               |
| 2000-01-25 | 1.65               |
| 2000-01-26 | 1.55               |
| 2000-01-27 | 1.52               |
| 2000-01-28 | 1.51               |
| 2000-01-29 | 1.51               |
| 2000-01-30 | 1.5                |
| 2000-01-31 | 1.49               |
| 2000-02-01 | 1.49               |
| 2000-02-02 | 1.49               |
| 2000-02-03 | 1.49               |
| 2000-02-04 | 1.49               |
| 2000-02-05 | 1.49               |
| 2000-02-06 | 1.49               |
| 2000-02-07 | 1.48               |
| 2000-02-08 | 1.48               |
| 2000-02-09 | 1.48               |
| 2000-02-10 | 1.49               |
| 2000-02-11 | 1.48               |
| 2000-02-12 | 1.48               |
| 2000-02-13 | 1.51               |
| 2000-02-14 | 1.71               |
| 2000-02-15 | 1.56               |
| 2000-02-16 | 1.51               |
| 2000-02-17 | 1.53               |
| 2000-02-18 | 1.49               |
| 2000-02-19 | 1.48               |
| 2000-02-20 | 1.48               |
| 2000-02-21 | 1.48               |
| 2000-02-22 | 1.48               |
| 2000-02-23 | 1.5                |
| 2000-02-24 | 1.5                |
| 2000-02-25 | 1.5                |
| 2000-02-26 | 1.62               |
| 2000-02-27 | 1.99               |
| 2000-02-28 | 1.5899999999999999 |
| 2000-02-29 | 1.51               |
| 2000-03-01 | 1.52               |
| 2000-03-02 | 1.52               |
| 2000-03-03 | 1.52               |
| 2000-03-04 | 1.52               |
| 2000-03-05 | 1.8                |
| 2000-03-06 | 1.82               |
| 2000-03-07 | 1.88               |
| 2000-03-08 | 1.8599999999999999 |
| 2000-03-09 | 1.79               |
| 2000-03-10 | 1.67               |
| 2000-03-11 | 1.53               |
| 2000-03-12 | 1.53               |
| 2000-03-13 | 1.51               |
| 2000-03-14 | 1.5                |
| 2000-03-15 | 1.49               |
| 2000-03-16 | 1.49               |
| 2000-03-17 | 1.48               |
| 2000-03-18 | 1.48               |
| 2000-03-19 | 1.48               |
| 2000-03-20 | 1.48               |
| 2000-03-21 | 1.48               |
| 2000-03-22 | 1.47               |
| 2000-03-23 | 1.49               |
| 2000-03-24 | 1.48               |
| 2000-03-25 | 1.49               |
| 2000-03-26 | 1.49               |
| 2000-03-27 | 1.49               |
| 2000-03-28 | 1.49               |
| 2000-03-29 | 1.49               |
| 2000-03-30 | 1.49               |
| 2000-03-31 | 1.49               |
| 2000-04-01 | 1.49               |
| 2000-04-02 | 1.48               |
| 2000-04-03 | 1.48               |
| 2000-04-04 | 1.48               |
| 2000-04-05 | 1.49               |
| 2000-04-06 | 1.49               |
| 2000-04-07 | 1.5                |
| 2000-04-08 | 1.5                |
| 2000-04-09 | 1.5                |
| 2000-04-10 | 1.43               |
| 2000-04-11 | 1.48               |
| 2000-04-12 | 1.48               |
| 2000-04-13 | 1.5                |
| 2000-04-14 | 1.51               |
| 2000-04-15 | 1.52               |
| 2000-04-16 | 1.53               |
| 2000-04-17 | 1.55               |
| 2000-04-18 | 1.56               |
| 2000-04-19 | 1.54               |
| 2000-04-20 | 1.53               |
| 2000-04-21 | 1.52               |
| 2000-04-22 | 1.52               |
| 2000-04-23 | 1.53               |
| 2000-04-24 | 1.52               |
| 2000-04-25 | 1.52               |
| 2000-04-26 | 1.55               |
| 2000-04-27 | 1.55               |
| 2000-04-28 | 1.96               |
| 2000-04-29 | 2.67               |
| 2000-04-30 | 2.68               |
| 2000-05-01 | 2.89               |
| 2000-05-02 | 3.08               |
| 2000-05-03 | 3.09               |
| 2000-05-04 | 3.09               |
| 2000-05-05 | 3.08               |
| 2000-05-06 | 3.08               |
| 2000-05-07 | 2.86               |
| 2000-05-08 | 2.71               |
| 2000-05-09 | 2.71               |
| 2000-05-10 | 2.71               |
| 2000-05-11 | 2.61               |
| 2000-05-12 | 2.71               |
| 2000-05-13 | 2.84               |
| 2000-05-14 | 3.04               |
| 2000-05-15 | 3.04               |
| 2000-05-16 | 3.04               |
| 2000-05-17 | 3.04               |
| 2000-05-18 | 3.05               |
| 2000-05-19 | 3.05               |
| 2000-05-20 | 3.05               |
| 2000-05-21 | 3.15               |
| 2000-05-22 | 3.24               |
| 2000-05-23 | 3.24               |
| 2000-05-24 | 3.23               |
| 2000-05-25 | 3.23               |
| 2000-05-26 | 3.23               |
| 2000-05-27 | 3.23               |
| 2000-05-28 | 3.23               |
| 2000-05-29 | 3.23               |
| 2000-05-30 | 3.23               |
| 2000-05-31 | 3.23               |
| 2000-06-01 | 3.23               |
| 2000-06-02 | 3.23               |
| 2000-06-03 | 3.23               |
| 2000-06-04 | 3.3                |
| 2000-06-05 | 3.36               |
| 2000-06-06 | 3.36               |
| 2000-06-07 | 3.36               |
| 2000-06-08 | 3.36               |
| 2000-06-09 | 3.32               |
| 2000-06-10 | 3.29               |
| 2000-06-11 | 3.29               |
| 2000-06-12 | 3.21               |
| 2000-06-13 | 3.15               |
| 2000-06-14 | 3.11               |
| 2000-06-15 | 3.07               |
| 2000-06-16 | 3.07               |
| 2000-06-17 | 3.07               |
| 2000-06-18 | 3.07               |
| 2000-06-19 | 3.07               |
| 2000-06-20 | 3.07               |
| 2000-06-21 | 3.08               |
| 2000-06-22 | 3.19               |
| 2000-06-23 | 3.2800000000000002 |
| 2000-06-24 | 3.2800000000000002 |
| 2000-06-25 | 3.2800000000000002 |
| 2000-06-26 | 3.2800000000000002 |
| 2000-06-27 | 3.2800000000000002 |
| 2000-06-28 | 3.2800000000000002 |
| 2000-06-29 | 3.2800000000000002 |
| 2000-06-30 | 3.2800000000000002 |
| 2000-07-01 | 3.2800000000000002 |
| 2000-07-02 | 3.16               |
| 2000-07-03 | 3.2800000000000002 |
| 2000-07-04 | 3.2800000000000002 |
| 2000-07-05 | 3.2800000000000002 |
| 2000-07-06 | 3.2800000000000002 |
| 2000-07-07 | 3.2800000000000002 |
| 2000-07-08 | 3.16               |
| 2000-07-09 | 3.2800000000000002 |
| 2000-07-10 | 3.24               |
| 2000-07-11 | 3.16               |
| 2000-07-12 | 3.16               |
| 2000-07-13 | 3.04               |
| 2000-07-14 | 3.16               |
| 2000-07-15 | 3.13               |
| 2000-07-16 | 3.08               |
| 2000-07-17 | 3.08               |
| 2000-07-18 | 3.08               |
| 2000-07-19 | 3.08               |
| 2000-07-20 | 2.9699999999999998 |
| 2000-07-21 | 3.08               |
| 2000-07-22 | 3.13               |
| 2000-07-23 | 3.06               |
| 2000-07-24 | 3.18               |
| 2000-07-25 | 3.18               |
| 2000-07-26 | 3.18               |
| 2000-07-27 | 3.18               |
| 2000-07-28 | 3.18               |
| 2000-07-29 | 3.18               |
| 2000-07-30 | 3.18               |
| 2000-07-31 | 3.18               |
| 2000-08-01 | 3.17               |
| 2000-08-02 | 3.17               |
| 2000-08-03 | 3.17               |
| 2000-08-04 | 3.17               |
| 2000-08-05 | 3.17               |
| 2000-08-06 | 3.17               |
| 2000-08-07 | 3.17               |
| 2000-08-08 | 3.16               |
| 2000-08-09 | 3.16               |
| 2000-08-10 | 3.16               |
| 2000-08-11 | 3.16               |
| 2000-08-12 | 3.16               |
| 2000-08-13 | 3.16               |
| 2000-08-14 | 3.22               |
| 2000-08-15 | 3.2800000000000002 |
| 2000-08-16 | 3.2800000000000002 |
| 2000-08-17 | 3.2800000000000002 |
| 2000-08-18 | 3.2                |
| 2000-08-19 | 3.36               |
| 2000-08-20 | 3.36               |
| 2000-08-21 | 3.36               |
| 2000-08-22 | 3.36               |
| 2000-08-23 | 3.36               |
| 2000-08-24 | 3.35               |
| 2000-08-25 | 3.56               |
| 2000-08-26 | 3.93               |
| 2000-08-27 | 3.92               |
| 2000-08-28 | 3.92               |
| 2000-08-29 | 4.1                |
| 2000-08-30 | 4.46               |
| 2000-08-31 | 4.45               |
| 2000-09-01 | 4.45               |
| 2000-09-02 |                    |
| 2000-09-03 | 4.94               |
| 2000-09-04 | 4.93               |
| 2000-09-05 | 4.93               |
| 2000-09-06 | 4.92               |
| 2000-09-07 | 4.92               |
| 2000-09-08 | 4.91               |
| 2000-09-09 | 4.91               |
| 2000-09-10 | 4.9                |
| 2000-09-11 | 4.9                |
| 2000-09-12 | 4.89               |
| 2000-09-13 | 4.88               |
| 2000-09-14 | 4.88               |
| 2000-09-15 | 4.98               |
| 2000-09-16 | 5.25               |
| 2000-09-17 | 5.24               |
| 2000-09-18 | 5.23               |
| 2000-09-19 | 5.22               |
| 2000-09-20 | 5.21               |
| 2000-09-21 | 5.21               |
| 2000-09-22 | 5.2                |
| 2000-09-23 | 5.2                |
| 2000-09-24 | 5.19               |
| 2000-09-25 | 5.18               |
| 2000-09-26 | 5.17               |
| 2000-09-27 | 5.17               |
| 2000-09-28 | 5.16               |
| 2000-09-29 | 3.13               |
| 2000-09-30 | 1.57               |
| 2000-10-01 | 1.55               |
| 2000-10-02 | 1.55               |
| 2000-10-03 | 1.55               |
| 2000-10-04 | 1.55               |
| 2000-10-05 | 1.55               |
| 2000-10-06 | 1.55               |
| 2000-10-07 | 1.55               |
| 2000-10-08 | 1.55               |
| 2000-10-09 | 1.55               |
| 2000-10-10 | 1.56               |
| 2000-10-11 | 1.57               |
| 2000-10-12 | 1.57               |
| 2000-10-13 | 1.58               |
| 2000-10-14 | 1.53               |
| 2000-10-15 | 1.53               |
| 2000-10-16 | 1.55               |
| 2000-10-17 | 1.56               |
| 2000-10-18 | 1.57               |
| 2000-10-19 | 1.57               |
| 2000-10-20 | 1.58               |
| 2000-10-21 | 1.58               |
| 2000-10-22 | 1.58               |
| 2000-10-23 | 1.58               |
| 2000-10-24 | 1.58               |
| 2000-10-25 | 1.59               |
| 2000-10-26 | 1.59               |
| 2000-10-27 | 1.59               |
| 2000-10-28 | 1.6                |
| 2000-10-29 | 1.6                |
| 2000-10-30 | 1.6                |
| 2000-10-31 | 1.6                |
| 2000-11-01 | 1.6                |
| 2000-11-02 | 1.6                |
| 2000-11-03 | 1.6                |
| 2000-11-04 | 1.6                |
| 2000-11-05 | 1.6                |
| 2000-11-06 | 1.6                |
| 2000-11-07 | 1.59               |
| 2000-11-08 | 1.59               |
| 2000-11-09 | 1.59               |
| 2000-11-10 | 1.59               |
| 2000-11-11 | 1.59               |
| 2000-11-12 | 1.59               |
| 2000-11-13 | 1.59               |
| 2000-11-14 | 1.59               |
| 2000-11-15 | 1.59               |
| 2000-11-16 | 1.59               |
| 2000-11-17 | 1.59               |
| 2000-11-18 | 1.59               |
| 2000-11-19 | 1.58               |
| 2000-11-20 | 1.58               |
| 2000-11-21 | 1.58               |
| 2000-11-22 | 1.58               |
| 2000-11-23 | 1.58               |
| 2000-11-24 | 1.58               |
| 2000-11-25 | 1.58               |
| 2000-11-26 | 1.58               |
| 2000-11-27 | 1.58               |
| 2000-11-28 | 1.58               |
| 2000-11-29 | 1.6                |
| 2000-11-30 | 1.59               |
| 2000-12-01 | 1.59               |
| 2000-12-02 | 1.59               |
| 2000-12-03 | 1.58               |
| 2000-12-04 | 1.58               |
| 2000-12-05 | 1.58               |
| 2000-12-06 | 1.57               |
| 2000-12-07 | 1.57               |
| 2000-12-08 | 1.57               |
| 2000-12-09 | 1.57               |
| 2000-12-10 | 1.57               |
| 2000-12-11 | 1.57               |
| 2000-12-12 | 1.57               |
| 2000-12-13 | 1.56               |
| 2000-12-14 | 1.57               |
| 2000-12-15 | 1.57               |
| 2000-12-16 | 1.57               |
| 2000-12-17 | 1.57               |
| 2000-12-18 | 1.56               |
| 2000-12-19 | 1.56               |
| 2000-12-20 | 1.56               |
| 2000-12-21 | 1.56               |
| 2000-12-22 | 1.56               |
| 2000-12-23 | 1.56               |
| 2000-12-24 | 1.55               |
| 2000-12-25 | 1.54               |
| 2000-12-26 | 1.54               |
| 2000-12-27 | 1.54               |
| 2000-12-28 | 1.54               |
| 2000-12-29 | 1.54               |
| 2000-12-30 | 1.54               |
| 2000-12-31 | 1.54               |
| 2001-01-01 | 1.54               |
| 2001-01-02 | 1.54               |
| 2001-01-03 | 1.54               |
| 2001-01-04 | 1.54               |
| 2001-01-05 | 1.53               |
| 2001-01-06 | 1.54               |
| 2001-01-07 | 1.54               |
| 2001-01-08 | 1.54               |
| 2001-01-09 | 1.53               |
| 2001-01-10 | 1.53               |
| 2001-01-11 | 1.53               |
| 2001-01-12 | 1.52               |
| 2001-01-13 | 1.52               |
| 2001-01-14 | 1.52               |
| 2001-01-15 | 1.52               |
| 2001-01-16 | 1.51               |
| 2001-01-17 | 1.5                |
| 2001-01-18 | 1.49               |
| 2001-01-19 | 1.5                |
| 2001-01-20 | 1.5                |
| 2001-01-21 | 1.51               |
| 2001-01-22 | 1.52               |
| 2001-01-23 | 1.52               |
| 2001-01-24 | 1.52               |
| 2001-01-25 | 1.51               |
| 2001-01-26 | 1.51               |
| 2001-01-27 | 1.51               |
| 2001-01-28 | 1.51               |
| 2001-01-29 | 1.51               |
| 2001-01-30 | 1.51               |
| 2001-01-31 | 1.5                |
| 2001-02-01 | 1.5                |
| 2001-02-02 | 1.51               |
| 2001-02-03 | 1.51               |
| 2001-02-04 | 1.51               |
| 2001-02-05 | 1.51               |
| 2001-02-06 | 1.51               |
| 2001-02-07 | 1.51               |
| 2001-02-08 | 1.51               |
| 2001-02-09 | 1.52               |
| 2001-02-10 | 1.52               |
| 2001-02-11 | 1.52               |
| 2001-02-12 | 1.52               |
| 2001-02-13 | 1.52               |
| 2001-02-14 | 1.52               |
| 2001-02-15 | 1.52               |
| 2001-02-16 | 1.51               |
| 2001-02-17 | 1.51               |
| 2001-02-18 | 1.52               |
| 2001-02-19 | 1.53               |
| 2001-02-20 | 1.53               |
| 2001-02-21 | 1.54               |
| 2001-02-22 | 1.53               |
| 2001-02-23 | 1.54               |
| 2001-02-24 | 1.53               |
| 2001-02-25 | 1.53               |
| 2001-02-26 | 1.53               |
| 2001-02-27 | 1.52               |
| 2001-02-28 | 1.52               |
| 2001-03-01 | 1.51               |
| 2001-03-02 | 1.53               |
| 2001-03-03 | 1.52               |
| 2001-03-04 | 1.52               |
| 2001-03-05 | 1.52               |
| 2001-03-06 | 1.52               |
| 2001-03-07 | 1.52               |
| 2001-03-08 | 1.52               |
| 2001-03-09 | 1.52               |
| 2001-03-10 | 1.51               |
| 2001-03-11 | 1.51               |
| 2001-03-12 | 1.5                |
| 2001-03-13 | 1.5                |
| 2001-03-14 | 1.51               |
| 2001-03-15 | 1.51               |
| 2001-03-16 | 1.51               |
| 2001-03-17 | 1.52               |
| 2001-03-18 | 1.52               |
| 2001-03-19 | 1.51               |
| 2001-03-20 | 1.52               |
| 2001-03-21 | 1.52               |
| 2001-03-22 | 1.51               |
| 2001-03-23 | 1.5                |
| 2001-03-24 | 1.51               |
| 2001-03-25 | 1.54               |
| 2001-03-26 | 1.53               |
| 2001-03-27 | 1.52               |
| 2001-03-28 | 1.53               |
| 2001-03-29 | 1.52               |
| 2001-03-30 | 1.51               |
| 2001-03-31 | 1.51               |
| 2001-04-01 | 1.51               |
| 2001-04-02 | 1.51               |
| 2001-04-03 | 1.52               |
| 2001-04-04 | 1.51               |
| 2001-04-05 | 1.51               |
| 2001-04-06 | 1.53               |
| 2001-04-07 | 1.55               |
| 2001-04-08 | 1.56               |
| 2001-04-09 | 1.55               |
| 2001-04-10 | 1.55               |
| 2001-04-11 | 1.56               |
| 2001-04-12 | 1.55               |
| 2001-04-13 | 1.55               |
| 2001-04-14 | 1.54               |
| 2001-04-15 | 1.54               |
| 2001-04-16 | 1.53               |
| 2001-04-17 | 1.54               |
| 2001-04-18 | 1.55               |
| 2001-04-19 | 1.56               |
| 2001-04-20 | 1.55               |
| 2001-04-21 | 1.54               |
| 2001-04-22 | 1.54               |
| 2001-04-23 | 1.53               |
| 2001-04-24 | 1.52               |
| 2001-04-25 | 1.51               |
| 2001-04-26 | 2.23               |
| 2001-04-27 | 2.36               |
| 2001-04-28 | 1.62               |
| 2001-04-29 | 1.61               |
| 2001-04-30 | 1.61               |
| 2001-05-01 | 1.6                |
| 2001-05-02 | 1.6                |
| 2001-05-03 | 2.12               |
| 2001-05-04 | 3.1                |
| 2001-05-05 | 3.14               |
| 2001-05-06 | 3.26               |
| 2001-05-07 | 3.32               |
| 2001-05-08 | 3.41               |
| 2001-05-09 | 3.41               |
| 2001-05-10 | 3.41               |
| 2001-05-11 | 3.61               |
| 2001-05-12 | 3.84               |
| 2001-05-13 | 3.84               |
| 2001-05-14 | 3.85               |
| 2001-05-15 | 3.85               |
| 2001-05-16 | 3.8                |
| 2001-05-17 | 3.74               |
| 2001-05-18 | 3.74               |
| 2001-05-19 | 3.74               |
| 2001-05-20 | 3.74               |
| 2001-05-21 | 3.74               |
| 2001-05-22 | 3.74               |
| 2001-05-23 | 3.74               |
| 2001-05-24 | 3.73               |
| 2001-05-25 | 3.73               |
| 2001-05-26 | 3.73               |
| 2001-05-27 | 3.73               |
| 2001-05-28 | 3.72               |
| 2001-05-29 | 3.72               |
| 2001-05-30 | 3.72               |
| 2001-05-31 | 3.91               |
| 2001-06-01 | 3.91               |
| 2001-06-02 | 3.9                |
| 2001-06-03 | 3.9                |
| 2001-06-04 | 3.9                |
| 2001-06-05 | 3.9                |
| 2001-06-06 | 3.89               |
| 2001-06-07 | 3.89               |
| 2001-06-08 | 3.88               |
| 2001-06-09 | 3.88               |
| 2001-06-10 | 3.87               |
| 2001-06-11 | 3.87               |
| 2001-06-12 | 3.86               |
| 2001-06-13 | 3.86               |
| 2001-06-14 | 3.85               |
| 2001-06-15 | 3.84               |
| 2001-06-16 | 3.84               |
| 2001-06-17 | 3.84               |
| 2001-06-18 | 3.83               |
| 2001-06-19 | 3.91               |
| 2001-06-20 | 4.03               |
| 2001-06-21 | 4.03               |
| 2001-06-22 | 4.02               |
| 2001-06-23 | 4.01               |
| 2001-06-24 | 4.01               |
| 2001-06-25 | 4.01               |
| 2001-06-26 | 4.0                |
| 2001-06-27 | 4.0                |
| 2001-06-28 | 3.99               |
| 2001-06-29 | 3.99               |
| 2001-06-30 | 3.98               |
| 2001-07-01 | 3.98               |
| 2001-07-02 | 3.97               |
| 2001-07-03 | 3.97               |
| 2001-07-04 | 3.97               |
| 2001-07-05 | 3.96               |
| 2001-07-06 | 3.96               |
| 2001-07-07 | 3.95               |
| 2001-07-08 | 3.95               |
| 2001-07-09 | 3.95               |
| 2001-07-10 | 3.95               |
| 2001-07-11 | 3.94               |
| 2001-07-12 | 3.94               |
| 2001-07-13 | 3.93               |
| 2001-07-14 | 3.93               |
| 2001-07-15 | 3.93               |
| 2001-07-16 | 3.93               |
| 2001-07-17 | 3.93               |
| 2001-07-18 | 3.92               |
| 2001-07-19 | 3.92               |
| 2001-07-20 | 3.92               |
| 2001-07-21 | 3.92               |
| 2001-07-22 | 3.92               |
| 2001-07-23 | 3.91               |
| 2001-07-24 | 3.91               |
| 2001-07-25 | 3.91               |
| 2001-07-26 | 3.91               |
| 2001-07-27 | 3.71               |
| 2001-07-28 | 3.34               |
| 2001-07-29 | 3.34               |
| 2001-07-30 | 3.34               |
| 2001-07-31 | 3.32               |
| 2001-08-01 | 3.29               |
| 2001-08-02 | 3.29               |
| 2001-08-03 | 3.26               |
| 2001-08-04 | 3.21               |
| 2001-08-05 | 3.21               |
| 2001-08-06 | 3.21               |
| 2001-08-07 | 3.2                |
| 2001-08-08 | 3.2                |
| 2001-08-09 | 3.63               |
| 2001-08-10 | 4.08               |
| 2001-08-11 | 4.07               |
| 2001-08-12 | 4.07               |
| 2001-08-13 | 4.07               |
| 2001-08-14 | 4.07               |
| 2001-08-15 | 4.33               |
| 2001-08-16 | 4.72               |
| 2001-08-17 | 4.72               |
| 2001-08-18 | 4.71               |
| 2001-08-19 | 4.71               |
| 2001-08-20 | 4.7                |
| 2001-08-21 | 4.7                |
| 2001-08-22 | 4.64               |
| 2001-08-23 | 4.59               |
| 2001-08-24 | 4.57               |
| 2001-08-25 | 4.57               |
| 2001-08-26 | 4.56               |
| 2001-08-27 | 4.55               |
| 2001-08-28 | 4.55               |
| 2001-08-29 | 4.55               |
| 2001-08-30 | 4.54               |
| 2001-08-31 | 4.39               |
| 2001-09-01 | 3.32               |
| 2001-09-02 | 3.32               |
| 2001-09-03 | 3.32               |
| 2001-09-04 | 3.32               |
| 2001-09-05 | 3.32               |
| 2001-09-06 | 3.32               |
| 2001-09-07 | 3.32               |
| 2001-09-08 | 3.31               |
| 2001-09-09 | 3.31               |
| 2001-09-10 | 3.28               |
| 2001-09-11 | 3.24               |
| 2001-09-12 | 3.24               |
| 2001-09-13 | 3.19               |
| 2001-09-14 | 3.11               |
| 2001-09-15 | 3.11               |
| 2001-09-16 | 3.03               |
| 2001-09-17 | 2.96               |
| 2001-09-18 | 2.95               |
| 2001-09-19 | 2.95               |
| 2001-09-20 | 2.96               |
| 2001-09-21 | 2.96               |
| 2001-09-22 | 2.96               |
| 2001-09-23 | 2.96               |
| 2001-09-24 | 2.96               |
| 2001-09-25 | 2.29               |
| 2001-09-26 | 1.57               |
| 2001-09-27 | 1.6                |
| 2001-09-28 | 1.67               |
| 2001-09-29 | 1.67               |
| 2001-09-30 | 1.66               |
| 2001-10-01 | 1.66               |