| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 257 |
1.1%
|
| 2 | Monthly | 1108 |
4.6%
|
| 3 | Yearly | 4633 |
19.2%
|
| 4 | Not all | 18099 |
75.1%
|
| Sysmiss | 392 |