| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 7321 |
30.4%
|
| 2 | Monthly | 2183 |
9.1%
|
| 3 | Yearly | 597 |
2.5%
|
| 4 | Not all | 13996 |
58.1%
|
| Sysmiss | 392 |