Additional Data and Information.-- Latest shifted rating.
Funding for this site is provided by the cooperators / programs below:
| Min (1979) | 25th percen- tile | Median | Most Recent Instantaneous Value Feb 1 | Mean | 75th percen- tile | Max (2020) |
|---|---|---|---|---|---|---|
| 4.80 | 8.7 | 15 | 15.6 | 27 | 33 | 226 |