| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 10140 |
41.2%
|
| 2 | Monthly | 3804 |
15.4%
|
| 3 | Yearly | 1694 |
6.9%
|
| 4 | Not all | 8988 |
36.5%
|
| Sysmiss | 534 |