| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 9123 |
37.9%
|
| 2 | Monthly | 3176 |
13.2%
|
| 3 | Yearly | 1367 |
5.7%
|
| 4 | Not all | 10431 |
43.3%
|
| Sysmiss | 392 |