| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 3805 |
15.5%
|
| 2 | Monthly | 3756 |
15.3%
|
| 3 | Yearly | 2880 |
11.7%
|
| 4 | Not all | 14147 |
57.5%
|
| Sysmiss | 582 |