| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1305 |
5.2%
|
| 2 | Monthly | 901 |
3.6%
|
| 3 | Yearly | 975 |
3.9%
|
| 4 | Not all | 21864 |
87.3%
|
| Sysmiss | 69 |