| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1272 |
5.2%
|
| 2 | Monthly | 2693 |
10.9%
|
| 3 | Yearly | 3029 |
12.3%
|
| 4 | Not all | 17632 |
71.6%
|
| Sysmiss | 534 |