| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 7014 |
30.1%
|
| 2 | Monthly | 5069 |
21.7%
|
| 3 | Yearly | 1444 |
6.2%
|
| 4 | Not all | 9807 |
42%
|
| Sysmiss | 1073 |