| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1211 |
5%
|
| 2 | Monthly | 808 |
3.4%
|
| 3 | Yearly | 952 |
4%
|
| 4 | Not all | 21126 |
87.7%
|
| Sysmiss | 392 |