| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 2821 |
11.5%
|
| 2 | Monthly | 5197 |
21.1%
|
| 3 | Yearly | 2691 |
10.9%
|
| 4 | Not all | 13917 |
56.5%
|
| Sysmiss | 534 |