| datetime   | gage height |
|------------|-------------|
| 2017-10-21 | 67.14       |
| 2017-10-22 | 66.86       |
| 2017-10-23 | 66.9        |
| 2017-10-24 | 67.2        |
| 2017-10-25 | 66.77       |
| 2017-10-26 | 67.19       |
| 2017-10-27 | 66.64       |
| 2017-10-28 | 67.03       |
| 2017-10-29 | 66.86       |
| 2017-10-30 | 66.99       |
| 2017-10-31 | 67.09       |
| 2017-11-01 | 66.81       |
| 2017-11-02 | 67.26       |
| 2017-11-03 | 66.93       |
| 2017-11-04 | 66.96       |
| 2017-11-05 | 67.17       |
| 2017-11-06 | 66.97       |
| 2017-11-07 | 67.13       |
| 2017-11-08 | 66.82       |
| 2017-11-09 | 67.24       |
| 2017-11-10 | 67.17       |
| 2017-11-11 | 66.59       |
| 2017-11-12 | 67.08       |
| 2017-11-13 | 67.12       |
| 2017-11-14 | 66.83       |
| 2017-11-15 | 67.02       |
| 2017-11-16 | 66.79       |
| 2017-11-17 | 67.25       |
| 2017-11-18 | 66.82       |
| 2017-11-19 | 67.33       |
| 2017-11-20 | 66.73       |
| 2017-11-21 | 67.17       |
| 2017-11-22 | 66.76       |
| 2017-11-23 | 67.22       |
| 2017-11-24 | 67.17       |
| 2017-11-25 | 66.91       |
| 2017-11-26 | 66.83       |
| 2017-11-27 | 66.84       |
| 2017-11-28 | 67.19       |
| 2017-11-29 | 66.8        |
| 2017-11-30 | 67.14       |
| 2017-12-01 | 67.21       |
| 2017-12-02 | 67.16       |
| 2017-12-03 | 66.97       |
| 2017-12-04 | 66.85       |
| 2017-12-05 | 67.06       |
| 2017-12-06 | 66.85       |
| 2017-12-07 | 67.17       |
| 2017-12-08 | 66.98       |
| 2017-12-09 | 66.81       |
| 2017-12-10 | 67.18       |
| 2017-12-11 | 66.8        |
| 2017-12-12 | 66.82       |
| 2017-12-13 | 67.2        |
| 2017-12-14 | 66.88       |
| 2017-12-15 | 67.62       |
| 2017-12-16 | 68.09       |
| 2017-12-17 | 67.95       |
| 2017-12-18 | 68.03       |
| 2017-12-19 | 67.89       |
| 2017-12-20 | 68.42       |
| 2017-12-21 | 68.05       |
| 2017-12-22 | 67.99       |
| 2017-12-23 | 68.12       |
| 2017-12-24 | 67.91       |
| 2017-12-25 | 67.88       |
| 2017-12-26 | 67.84       |
| 2017-12-27 | 67.83       |
| 2017-12-28 | 67.87       |
| 2017-12-29 | 67.88       |
| 2017-12-30 | 67.85       |
| 2017-12-31 | 67.83       |
| 2018-01-01 | 67.84       |
| 2018-01-02 | 67.59       |
| 2018-01-03 | 66.81       |
| 2018-01-04 | 66.94       |
| 2018-01-05 | 67.06       |
| 2018-01-06 | 66.98       |
| 2018-01-07 | 67.17       |
| 2018-01-08 | 66.63       |
| 2018-01-09 | 67.25       |
| 2018-01-10 | 66.64       |
| 2018-01-11 | 67.25       |
| 2018-01-12 | 66.64       |
| 2018-01-13 | 67.24       |
| 2018-01-14 | 66.64       |
| 2018-01-15 | 67.16       |
| 2018-01-16 | 66.72       |
| 2018-01-17 | 67.0        |
| 2018-01-18 | 66.92       |
| 2018-01-19 | 66.84       |
| 2018-01-20 | 67.11       |
| 2018-01-21 | 67.28       |
| 2018-01-22 | 67.13       |
| 2018-01-23 | 66.73       |
| 2018-01-24 | 67.01       |
| 2018-01-25 | 66.99       |
| 2018-01-26 | 67.13       |
| 2018-01-27 | 66.92       |
| 2018-01-28 | 66.88       |
| 2018-01-29 | 67.18       |
| 2018-01-30 | 66.6        |
| 2018-01-31 | 66.85       |
| 2018-02-01 | 67.19       |
| 2018-02-02 | 67.48       |
| 2018-02-03 | 67.75       |
| 2018-02-04 | 68.01       |
| 2018-02-05 | 67.82       |
| 2018-02-06 | 66.79       |
| 2018-02-07 | 66.91       |
| 2018-02-08 | 67.22       |
| 2018-02-09 | 67.25       |
| 2018-02-10 | 66.38       |
| 2018-02-11 | 66.73       |
| 2018-02-12 | 67.05       |
| 2018-02-13 | 67.35       |
| 2018-02-14 | 66.19       |
| 2018-02-15 | 66.12       |
| 2018-02-16 | 66.45       |
| 2018-02-17 | 66.78       |
| 2018-02-18 | 67.07       |
| 2018-02-19 | 67.34       |
| 2018-02-20 | 66.3        |
| 2018-02-21 | 66.66       |
| 2018-02-22 | 67.0        |
| 2018-02-23 | 67.34       |
| 2018-02-24 | 66.49       |
| 2018-02-25 | 66.65       |
| 2018-02-26 | 67.02       |
| 2018-02-27 | 67.35       |
| 2018-02-28 | 66.26       |
| 2018-03-01 | 66.53       |
| 2018-03-02 | 66.9        |
| 2018-03-03 | 67.23       |
| 2018-03-04 | 66.97       |
| 2018-03-05 | 66.31       |
| 2018-03-06 | 66.55       |
| 2018-03-07 | 66.93       |
| 2018-03-08 | 67.11       |
| 2018-03-09 | 67.29       |
| 2018-03-10 | 66.56       |
| 2018-03-11 | 66.64       |
| 2018-03-12 | 67.11       |
| 2018-03-13 | 66.59       |
| 2018-03-14 | 66.59       |