| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 3332 |
13.8%
|
| 2 | Monthly | 5743 |
23.8%
|
| 3 | Yearly | 8415 |
34.9%
|
| 4 | Not all | 6607 |
27.4%
|
| Sysmiss | 392 |