| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 818 |
3.3%
|
| 2 | Monthly | 1133 |
4.6%
|
| 3 | Yearly | 1334 |
5.4%
|
| 4 | Not all | 21303 |
86.6%
|
| Sysmiss | 582 |