| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1417 |
5.7%
|
| 2 | Monthly | 6356 |
25.4%
|
| 3 | Yearly | 5070 |
20.2%
|
| 4 | Not all | 12202 |
48.7%
|
| Sysmiss | 69 |