| Period  | All rates | Zero to 5.0 | 5.0 to 5.9 | 6.0 to 6.9 | 7.0 to 7.9 | 8.0 to 8.9 | 9.0 to 9.9 | 10.0 to 10.9 | 11.0 to 11.9 | 12.0 to 12.9 | 13.0 to 13.9 | 14.0 to 14.9 | 15.0 to 15.9 | 16.0 to 16.9 | 17.0 to 17.9 | 18.0 to 18.9 | 19.0 to 19.9 | 20.0 to 20.9 |
|---------|-----------|-------------|------------|------------|------------|------------|------------|--------------|--------------|--------------|--------------|--------------|--------------|--------------|--------------|--------------|--------------|--------------|
| 1987:Q1 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1987:Q2 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1987:Q3 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1987:Q4 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1988:Q1 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1988:Q2 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1988:Q3 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1988:Q4 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1989:Q1 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1989:Q2 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1989:Q3 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1989:Q4 | *         | *           | *          | *          | *          | *          | *          | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1990:Q1 | 100       | *           | *          | *          | *          | *          | 1          | 8            | 34           | 38           | 14           | 3            | 1            | *            | *            | *            | *            | *            |
| 1990:Q2 | 100       | *           | *          | *          | *          | *          | 1          | 8            | 33           | 39           | 14           | 5            | *            | *            | *            | *            | *            | *            |
| 1990:Q3 | 100       | *           | *          | *          | *          | 26         | 4          | 16           | 19           | 28           | 6            | 1            | *            | *            | *            | *            | *            | *            |
| 1990:Q4 | 100       | *           | *          | *          | *          | *          | 3          | 36           | 24           | 30           | 5            | 1            | *            | *            | *            | *            | *            | *            |
| 1991:Q1 | 100       | *           | *          | 3          | 4          | 3          | 31         | 19           | 22           | 14           | 4            | *            | *            | *            | *            | *            | *            | *            |
| 1991:Q2 | 100       | *           | 1          | 11         | 30         | 17         | 9          | 22           | 8            | 2            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1991:Q3 | 100       | *           | *          | 1          | 9          | 14         | 23         | 14           | 26           | 10           | 2            | *            | *            | *            | *            | *            | *            | *            |
| 1991:Q4 | 100       | *           | *          | 2          | 16         | 10         | 17         | 18           | 22           | 10           | 4            | *            | *            | *            | *            | *            | *            | *            |
| 1992:Q1 | 100       | *           | 2          | 16         | 10         | 17         | 18         | 22           | 10           | 5            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1992:Q2 | 100       | *           | 11         | 13         | 18         | 23         | 17         | 10           | 7            | 1            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1992:Q3 | 100       | 6           | 4          | 22         | 18         | 23         | 16         | 8            | 2            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1992:Q4 | 100       | 12          | 7          | 20         | 16         | 22         | 16         | 7            | 1            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1993:Q1 | 100       | *           | 4          | 11         | 20         | 17         | 26         | 15           | 7            | 1            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1993:Q2 | 100       | *           | 4          | 14         | 22         | 18         | 16         | 20           | 5            | 1            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1993:Q3 | 100       | *           | 12         | 29         | 14         | 19         | 22         | 4            | 1            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1993:Q4 | 100       | 8           | 8          | 26         | 16         | 20         | 18         | 3            | 2            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1994:Q1 | 100       | 8           | 4          | 30         | 18         | 22         | 15         | 2            | 1            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1994:Q2 | 100       | 4           | 4          | 23         | 21         | 22         | 20         | 4            | 2            | 0.01         | 0.01         | 0.01         | *            | *            | *            | *            | *            | *            |
| 1994:Q3 | 100       | 4           | 4          | 20         | 21         | 23         | 24         | 4            | 1            | 1            | 0.01         | 0.01         | *            | *            | *            | *            | *            | *            |
| 1994:Q4 | 100       | *           | 3          | 15         | 27         | 23         | 20         | 6            | 6            | *            | *            | *            | *            | *            | *            | *            | *            | *            |
| 1995:Q1 | 100       | *           | 2          | 1          | 1          | 9          | 7          | 27           | 27           | 15           | 11           | *            | *            | 0.01         | *            | *            | *            | *            |
| 1995:Q2 | 100       | *           | *          | 3          | 14         | 11         | 35         | 24           | 11           | 1            | 1            | *            | *            | 0.01         | *            | *            | *            | *            |
| 1995:Q3 | 100       | *           | *          | 5          | 15         | 8          | 30         | 30           | 10           | 1            | 1            | *            | *            | 0.01         | *            | *            | *            | *            |
| 1995:Q4 | 100       | *           | 0.01       | 10         | 12         | 11         | 30         | 25           | 9            | 1            | 1            | 0.01         | *            | 0.01         | *            | *            | *            | *            |
| 1996:Q1 | 100       | *           | 4          | 23         | 5          | 19         | 26         | 18           | 4            | 1            | 0.01         | *            | *            | 0.01         | *            | *            | *            | *            |
| 1996:Q2 | 100       | *           | 14         | 14         | 19         | 15         | 18         | 15           | 3            | 1            | 0.01         | 0.01         | *            | 0.01         | *            | *            | *            | *            |
| 1996:Q3 | 100       | *           | 0.01       | 15         | 18         | 25         | 22         | 15           | 4            | 1            | 0.01         | 0.01         | 0.01         | 0.01         | *            | *            | *            | *            |
| 1996:Q4 | 100       | *           | 0.01       | 19         | 8          | 27         | 25         | 16           | 4            | 1            | 0.01         | *            | 0.01         | 0.01         | *            | *            | *            | *            |
| 1997:Q1 | 100       | *           | 0.01       | 5          | 10         | 31         | 33         | 17           | 4            | 1            | 0.01         | 0.01         | 0.01         | 0.01         | *            | *            | *            | *            |
| 1997:Q2 | 100       | *           | 0.01       | 6          | 11         | 20         | 30         | 21           | 9            | 2            | 0.01         | 0.01         | 0.01         | 0.01         | *            | *            | *            | *            |
| 1997:Q3 | 100       | *           | 0.01       | 5          | 3          | 33         | 33         | 17           | 8            | 2            | 0.01         | 0.01         | 0.01         | *            | *            | *            | *            | *            |
| 1997:Q4 | 100       | *           | 0.01       | 5          | 6          | 34         | 31         | 16           | 6            | 1            | 0.01         | 0.01         | 0.01         | *            | *            | *            | *            | *            |
| 1998:Q1 | 100       | *           | 0.01       | 13         | 4          | 23         | 32         | 22           | 5            | 1            | 0.01         | 0.01         | 0.01         | *            | *            | *            | 0.01         | *            |
| 1998:Q2 | 100       | *           | 0.01       | 3          | 14         | 31         | 30         | 14           | 7            | 1            | 0.01         | 0.01         | 0.01         | *            | *            | *            | 0.01         | *            |
| 1998:Q3 | 100       | *           | 0.01       | 8          | 10         | 30         | 29         | 16           | 6            | 0.01         | 0.01         | *            | *            | 0.01         | *            | *            | *            | *            |
| 1998:Q4 | 100       | 0.01        | 0.01       | 0.01       | 3          | 15         | 30         | 34           | 13           | 4            | 0.01         | 0.01         | *            | *            | *            | *            | *            | *            |
| 1999:Q1 | 100       | 0.01        | 4          | 17         | 17         | 29         | 23         | 9            | 2            | 1            | 0.01         | 0.01         | 0.01         | 0.01         | *            | *            | *            | *            |
| 1999:Q2 | 100       | 0.01        | 4          | 4          | 12         | 37         | 30         | 11           | 2            | 0.01         | 0.01         | *            | 0.01         | *            | *            | *            | *            | *            |
| 1999:Q3 | 100       | *           | 2          | 4          | 10         | 35         | 32         | 12           | 4            | 1            | 0.01         | 0.01         | 0.01         | *            | *            | *            | *            | *            |
| 1999:Q4 | 100       | 0.01        | 0.01       | 3          | 9          | 30         | 36         | 17           | 5            | 1            | 0.01         | 0.01         | *            | *            | *            | *            | *            | *            |
| 2000:Q1 | 100       | *           | 0.01       | 5          | 4          | 30         | 36         | 18           | 6            | 1            | 0.01         | 0.01         | *            | *            | *            | *            | *            | *            |
| 2000:Q2 | 100       | 0.01        | 0.01       | 0.01       | 4          | 19         | 36         | 27           | 11           | 2            | 0.01         | 0.01         | 0.01         | *            | *            | *            | *            | *            |
| 2000:Q3 | 100       | 0.01        | 0.01       | 1          | 1          | 16         | 30         | 28           | 19           | 5            | 1            | 0.01         | 0.01         | 0.01         | 0.01         | *            | *            | *            |
| 2000:Q4 | 100       | *           | 0.01       | 0.01       | 3          | 15         | 30         | 34           | 13           | 4            | 0.01         | 0.01         | 0.01         | *            | *            | 0.01         | *            | *            |
| 2001:Q1 | 100       | 0.01        | *          | 8          | 7          | 28         | 33         | 17           | 5            | 2            | 0.01         | 0.01         | *            | 0.01         | 0.01         | 0.01         | *            | *            |
| 2001:Q2 | 100       | 0.01        | 3          | 8          | 29         | 31         | 22         | 5            | 2            | 0.39         | 0.07         | 0.03         | 0.01         | *            | *            | *            | *            | *            |
| 2001:Q3 | 100       | 1.1         | 9          | 23         | 25         | 25         | 12         | 3            | 1            | 0.26         | 0.01         | *            | *            | *            | *            | *            | *            | *            |
| 2001:Q4 | 100       | 21.2        | 32.8       | 13.6       | 16.4       | 10.5       | 4.1        | 0.9          | 0.3          | 0.1          | 0            | 0            | *            | *            | *            | *            | *            | *            |
| 2002:Q1 | 100       | 23.76       | 17.31      | 19.76      | 23.14      | 10.76      | 4.3        | 0.8          | 0            | 0            | *            | 0            | 0            | *            | 0            | *            | 0            | *            |
| 2002:Q2 | 100       | 23.24       | 22.45      | 17.77      | 22.77      | 10.15      | 2.75       | 0.77         | 0            | 0            | 0            | 0            | 0            | 0            | 0            | 0            | 0            | *            |
| 2002:Q3 | 100       | 26.33       | 27.25      | 18.41      | 15.57      | 8.76       | 2.82       | 0.49         | 0.29         | 0.06         | *            | *            | *            | *            | *            | *            | 0.02         | *            |
| 2002:Q4 | 100       | 38.69       | 23.76      | 14.2       | 12.97      | 7.73       | 2.02       | 0.44         | 0.04         | 0.04         | 0.04         | 0.02         | 0.02         | *            | *            | *            | 0.02         | *            |
| 2003:Q1 | 100       | 37.28       | 22.16      | 18.64      | 14.73      | 4.88       | 1.72       | 0.47         | 0.02         | 0.02         | *            | *            | *            | *            | *            | *            | 0.07         | *            |