| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1461 |
5.9%
|
| 2 | Monthly | 5774 |
23.5%
|
| 3 | Yearly | 4174 |
17%
|
| 4 | Not all | 13179 |
53.6%
|
| Sysmiss | 582 |