| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 301 |
1.2%
|
| 2 | Monthly | 730 |
3%
|
| 3 | Yearly | 2204 |
8.9%
|
| 4 | Not all | 21391 |
86.9%
|
| Sysmiss | 534 |