| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 989 |
4.2%
|
| 2 | Monthly | 1193 |
5.1%
|
| 3 | Yearly | 1644 |
7%
|
| 4 | Not all | 19508 |
83.6%
|
| Sysmiss | 1073 |