| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 354 |
1.5%
|
| 2 | Monthly | 2534 |
10.5%
|
| 3 | Yearly | 5734 |
23.8%
|
| 4 | Not all | 15475 |
64.2%
|
| Sysmiss | 392 |