| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1109 |
4.6%
|
| 2 | Monthly | 1279 |
5.3%
|
| 3 | Yearly | 1087 |
4.5%
|
| 4 | Not all | 20622 |
85.6%
|
| Sysmiss | 392 |