| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 190 |
0.8%
|
| 2 | Monthly | 330 |
1.4%
|
| 3 | Yearly | 1136 |
4.9%
|
| 4 | Not all | 21678 |
92.9%
|
| Sysmiss | 1073 |