| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 856 |
3.5%
|
| 2 | Monthly | 2861 |
11.6%
|
| 3 | Yearly | 7591 |
30.8%
|
| 4 | Not all | 13318 |
54.1%
|
| Sysmiss | 534 |