| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 240 |
1%
|
| 2 | Monthly | 720 |
3%
|
| 3 | Yearly | 5341 |
22.5%
|
| 4 | Not all | 17453 |
73.5%
|
| Sysmiss | 1058 |