| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1047 |
4.2%
|
| 2 | Monthly | 8780 |
35.1%
|
| 3 | Yearly | 2379 |
9.5%
|
| 4 | Not all | 12839 |
51.3%
|
| Sysmiss | 69 |