| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 2066 |
8.4%
|
| 2 | Monthly | 10065 |
40.9%
|
| 3 | Yearly | 3737 |
15.2%
|
| 4 | Not all | 8720 |
35.5%
|
| Sysmiss | 582 |