| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 2395 |
9.7%
|
| 2 | Monthly | 5885 |
23.9%
|
| 3 | Yearly | 9677 |
39.3%
|
| 4 | Not all | 6669 |
27.1%
|
| Sysmiss | 534 |