| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 5556 |
23.4%
|
| 2 | Monthly | 4107 |
17.3%
|
| 3 | Yearly | 1927 |
8.1%
|
| 4 | Not all | 12164 |
51.2%
|
| Sysmiss | 1058 |