| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1633 |
6.9%
|
| 2 | Monthly | 1463 |
6.2%
|
| 3 | Yearly | 1728 |
7.3%
|
| 4 | Not all | 18930 |
79.7%
|
| Sysmiss | 1058 |