| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing Data | 1 |
1.4%
|
| 1 | All months of the year | 60 |
85.7%
|
| 2 | Only specific months (seasonally) | 1 |
1.4%
|
| 3 | Occasionaly | 8 |
11.4%
|
| Sysmiss | 3930 |