| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 486 |
2%
|
| 2 | Monthly | 860 |
3.5%
|
| 3 | Yearly | 1457 |
5.9%
|
| 4 | Not all | 21823 |
88.6%
|
| Sysmiss | 534 |