| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 537 |
2.3%
|
| 2 | Monthly | 2546 |
10.7%
|
| 3 | Yearly | 12397 |
52.2%
|
| 4 | Not all | 8274 |
34.8%
|
| Sysmiss | 1058 |