| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1324 |
5.5%
|
| 2 | Monthly | 6133 |
25.5%
|
| 3 | Yearly | 4866 |
20.2%
|
| 4 | Not all | 11774 |
48.9%
|
| Sysmiss | 392 |