| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 857 |
3.6%
|
| 2 | Monthly | 2470 |
10.4%
|
| 3 | Yearly | 8316 |
35%
|
| 4 | Not all | 12111 |
51%
|
| Sysmiss | 1058 |