| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 61 |
5.1%
|
| 1 | Just once or twice | 38 |
3.2%
|
| 2 | Several times | 227 |
18.9%
|
| 3 | Many times | 441 |
36.8%
|
| 4 | Always | 431 |
35.9%
|
| 9 | Don't Know | 2 |
0.2%
|
| 998 | Refused | 0 |
0%
|