Additional Data and Information.-- Latest shifted rating.
Funding for this site is provided by the cooperators / programs below:
| Min (1949) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value Jan 31 | Max (1992) |
|---|---|---|---|---|---|---|
| 821 | 2640 | 4400 | 6960 | 8300 | 14800 | 42600 |