| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 96 |
8%
|
| 1 | Just once or twice | 170 |
14.2%
|
| 2 | Several times | 413 |
34.4%
|
| 3 | Many times | 349 |
29.1%
|
| 4 | Always | 169 |
14.1%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 3 |
0.3%
|