| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 3201 |
13.5%
|
| 2 | Monthly | 8242 |
34.7%
|
| 3 | Yearly | 3958 |
16.7%
|
| 4 | Not all | 8353 |
35.2%
|
| Sysmiss | 1058 |