| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1761 |
7.2%
|
| 2 | Monthly | 5684 |
23.1%
|
| 3 | Yearly | 2105 |
8.6%
|
| 4 | Not all | 15038 |
61.2%
|
| Sysmiss | 582 |