| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 936 |
79.6%
|
| 1 | Just once or twice | 65 |
5.5%
|
| 2 | Several times | 41 |
3.5%
|
| 3 | Many times | 16 |
1.4%
|
| 4 | Always | 104 |
8.8%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don't Know | 13 |
1.1%
|