| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 922 |
3.9%
|
| 2 | Monthly | 1154 |
4.9%
|
| 3 | Yearly | 1162 |
4.9%
|
| 4 | Not all | 20516 |
86.4%
|
| Sysmiss | 1058 |