| Value | Category | Cases | |
|---|---|---|---|
| -3 | Missing | 0 |
0%
|
| -2 | Do not know | 0 |
0%
|
| -1 | Refused | 3 |
0.3%
|
| 1 | always | 3 |
0.3%
|
| 2 | just once or twice | 210 |
21.5%
|
| 3 | many times | 19 |
1.9%
|
| 4 | never | 624 |
63.9%
|
| 5 | several times | 117 |
12%
|
| 99 | Other | 0 |
0%
|
| Sysmiss | 23 |