| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 214 |
0.9%
|
| 2 | Monthly | 1017 |
4.4%
|
| 3 | Yearly | 4115 |
17.6%
|
| 4 | Not all | 17988 |
77.1%
|
| Sysmiss | 1073 |