| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1037 |
4.4%
|
| 2 | Monthly | 1143 |
4.9%
|
| 3 | Yearly | 1028 |
4.4%
|
| 4 | Not all | 20126 |
86.3%
|
| Sysmiss | 1073 |