| Value | Category | Cases | |
|---|---|---|---|
| -77 | Other, specify | 0 |
0%
|
| -66 | Refused to answer | 0 |
0%
|
| 1 | Every week | 5 |
50%
|
| 2 | Every 2 weeks | 2 |
20%
|
| 3 | Every month | 3 |
30%
|
| 4 | Every year | 0 |
0%
|
| Sysmiss | 6 |