| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1022 |
4.2%
|
| 2 | Monthly | 5034 |
20.4%
|
| 3 | Yearly | 4771 |
19.4%
|
| 4 | Not all | 13799 |
56%
|
| Sysmiss | 534 |