| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 4625 |
18.8%
|
| 2 | Monthly | 3956 |
16.1%
|
| 3 | Yearly | 2329 |
9.5%
|
| 4 | Not all | 13716 |
55.7%
|
| Sysmiss | 534 |