| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 9700 |
39.5%
|
| 2 | Monthly | 3705 |
15.1%
|
| 3 | Yearly | 1525 |
6.2%
|
| 4 | Not all | 9658 |
39.3%
|
| Sysmiss | 582 |