| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 10963 |
47%
|
| 2 | Monthly | 4137 |
17.7%
|
| 3 | Yearly | 1992 |
8.5%
|
| 4 | Not all | 6242 |
26.8%
|
| Sysmiss | 1073 |