| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1289 |
5.2%
|
| 2 | Monthly | 9268 |
37.6%
|
| 3 | Yearly | 2559 |
10.4%
|
| 4 | Not all | 11510 |
46.7%
|
| Sysmiss | 534 |