| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 450 |
37.5%
|
| 1 | Just once or twice | 407 |
33.9%
|
| 2 | Several times | 213 |
17.8%
|
| 3 | Many times | 81 |
6.8%
|
| 4 | Always | 44 |
3.7%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don't Know | 4 |
0.3%
|