| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1161 |
5%
|
| 2 | Monthly | 1381 |
5.9%
|
| 3 | Yearly | 1176 |
5%
|
| 4 | Not all | 19616 |
84.1%
|
| Sysmiss | 1073 |