| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 698 |
2.8%
|
| 2 | Monthly | 6826 |
27.7%
|
| 3 | Yearly | 10106 |
41%
|
| 4 | Not all | 6996 |
28.4%
|
| Sysmiss | 534 |