| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 2347 |
9.7%
|
| 2 | Monthly | 1228 |
5.1%
|
| 3 | Yearly | 1325 |
5.5%
|
| 4 | Not all | 19197 |
79.7%
|
| Sysmiss | 392 |