| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing Data | 1 |
2.1%
|
| 1 | All months of the year | 41 |
85.4%
|
| 2 | Only specific months (seasonally) | 3 |
6.3%
|
| 3 | Occasionaly | 3 |
6.3%
|
| Sysmiss | 3952 |