| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 133 |
0.6%
|
| 2 | Monthly | 416 |
1.7%
|
| 3 | Yearly | 1616 |
6.7%
|
| 4 | Not all | 21932 |
91%
|
| Sysmiss | 392 |