| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 343 |
1.4%
|
| 2 | Monthly | 2448 |
10.3%
|
| 3 | Yearly | 5754 |
24.2%
|
| 4 | Not all | 15209 |
64%
|
| Sysmiss | 1058 |