| Value | Category | Cases | |
|---|---|---|---|
| 1 | Month | 83 |
2.3%
|
| 2 | Season | 1929 |
53.9%
|
| 3 | Year | 1568 |
43.8%
|
| 4 | Other (specify) | 2 |
0.1%
|
| Sysmiss | 435 |