| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 869 |
3.5%
|
| 2 | Monthly | 1015 |
4.1%
|
| 3 | Yearly | 1564 |
6.4%
|
| 4 | Not all | 21178 |
86%
|
| Sysmiss | 534 |