| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing Data | 1 |
1.7%
|
| 1 | All months of the year | 19 |
32.2%
|
| 2 | Only specific months (seasonally) | 8 |
13.6%
|
| 3 | Occasionaly | 31 |
52.5%
|
| Sysmiss | 3941 |