| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 2444 |
10.3%
|
| 2 | Monthly | 3876 |
16.3%
|
| 3 | Yearly | 4287 |
18%
|
| 4 | Not all | 13147 |
55.3%
|
| Sysmiss | 1058 |