| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 891 |
74.3%
|
| 1 | Just once or twice | 202 |
16.8%
|
| 2 | Several times | 76 |
6.3%
|
| 3 | Many times | 19 |
1.6%
|
| 4 | Always | 11 |
0.9%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don't Know | 0 |
0%
|