| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 243 |
1%
|
| 2 | Monthly | 1034 |
4.2%
|
| 3 | Yearly | 5207 |
21.1%
|
| 4 | Not all | 18142 |
73.7%
|
| Sysmiss | 534 |