| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1135 |
4.5%
|
| 2 | Monthly | 1302 |
5.2%
|
| 3 | Yearly | 1112 |
4.4%
|
| 4 | Not all | 21496 |
85.8%
|
| Sysmiss | 69 |