| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 594 |
2.4%
|
| 2 | Monthly | 2360 |
9.6%
|
| 3 | Yearly | 13332 |
54.2%
|
| 4 | Not all | 8302 |
33.8%
|
| Sysmiss | 582 |