| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1031 |
87.7%
|
| 1 | Just once or twice | 53 |
4.5%
|
| 2 | Several times | 39 |
3.3%
|
| 3 | Many times | 14 |
1.2%
|
| 4 | Always | 37 |
3.1%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 2 |
0.2%
|