| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 649 |
2.7%
|
| 2 | Monthly | 3022 |
12.5%
|
| 3 | Yearly | 1457 |
6%
|
| 4 | Not all | 18969 |
78.7%
|
| Sysmiss | 392 |