| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 9275 |
39%
|
| 2 | Monthly | 3498 |
14.7%
|
| 3 | Yearly | 1302 |
5.5%
|
| 4 | Not all | 9679 |
40.7%
|
| Sysmiss | 1058 |