| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 707 |
2.9%
|
| 2 | Monthly | 2574 |
10.5%
|
| 3 | Yearly | 2180 |
8.9%
|
| 4 | Not all | 19165 |
77.8%
|
| Sysmiss | 534 |