| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 377 |
1.5%
|
| 2 | Monthly | 925 |
3.7%
|
| 3 | Yearly | 2233 |
8.9%
|
| 4 | Not all | 21510 |
85.9%
|
| Sysmiss | 69 |