| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 3720 |
15.1%
|
| 2 | Monthly | 3864 |
15.7%
|
| 3 | Yearly | 2186 |
8.9%
|
| 4 | Not all | 14856 |
60.3%
|
| Sysmiss | 534 |