| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 9300 |
37.1%
|
| 2 | Monthly | 3210 |
12.8%
|
| 3 | Yearly | 1462 |
5.8%
|
| 4 | Not all | 11073 |
44.2%
|
| Sysmiss | 69 |