| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 927 |
3.9%
|
| 2 | Monthly | 1414 |
6%
|
| 3 | Yearly | 1385 |
5.8%
|
| 4 | Not all | 20028 |
84.3%
|
| Sysmiss | 1058 |