| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 476 |
1.9%
|
| 2 | Monthly | 821 |
3.3%
|
| 3 | Yearly | 1308 |
5.3%
|
| 4 | Not all | 22021 |
89.4%
|
| Sysmiss | 534 |