| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 214 |
0.9%
|
| 2 | Monthly | 751 |
3.2%
|
| 3 | Yearly | 1647 |
6.9%
|
| 4 | Not all | 21142 |
89%
|
| Sysmiss | 1058 |