| Value | Category | Cases | |
|---|---|---|---|
| -3 | Missing | 11 |
1.1%
|
| -2 | Do not know | 0 |
0%
|
| -1 | Refused | 0 |
0%
|
| 1 | always | 17 |
1.7%
|
| 2 | just once or twice | 240 |
24.6%
|
| 3 | many times | 56 |
5.7%
|
| 4 | never | 457 |
46.8%
|
| 5 | several times | 195 |
20%
|
| 99 | Other | 0 |
0%
|
| Sysmiss | 23 |