| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 2242 |
9%
|
| 2 | Monthly | 1828 |
7.3%
|
| 3 | Yearly | 1953 |
7.8%
|
| 4 | Not all | 19022 |
76%
|
| Sysmiss | 69 |