| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 867 |
3.7%
|
| 2 | Monthly | 2260 |
9.7%
|
| 3 | Yearly | 7624 |
32.7%
|
| 4 | Not all | 12583 |
53.9%
|
| Sysmiss | 1073 |