| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1980 |
82.6%
|
| 1 | Just once or twice | 271 |
11.3%
|
| 2 | Several times | 102 |
4.3%
|
| 3 | Many times | 38 |
1.6%
|
| 4 | Always | 7 |
0.3%
|
| 9 | Don't Know | 0 |
0%
|
| 98 | Refused | 0 |
0%
|