| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 124 |
13.4%
|
| 2 | Monthly | 164 |
17.7%
|
| 3 | Yearly | 127 |
13.7%
|
| 4 | Not all | 513 |
55.3%
|
| Sysmiss | 71 |