| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 705 |
3%
|
| 2 | Monthly | 6714 |
28.8%
|
| 3 | Yearly | 9602 |
41.2%
|
| 4 | Not all | 6313 |
27.1%
|
| Sysmiss | 1073 |