| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1292 |
5.2%
|
| 2 | Monthly | 986 |
4%
|
| 3 | Yearly | 1453 |
5.9%
|
| 4 | Not all | 20895 |
84.8%
|
| Sysmiss | 534 |