| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing Data | 2 |
2.4%
|
| 1 | All months of the year | 31 |
37.3%
|
| 2 | Only specific months (seasonally) | 28 |
33.7%
|
| 3 | Occasionaly | 22 |
26.5%
|
| Sysmiss | 3917 |