| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0.3%
|
| 0 | Never | 729 |
60.8%
|
| 1 | Just once or twice | 142 |
11.8%
|
| 2 | Several times | 118 |
9.8%
|
| 3 | Many times | 134 |
11.2%
|
| 4 | Always | 64 |
5.3%
|
| 9 | Don't Know | 9 |
0.8%
|
| 998 | Refused | 0 |
0%
|