| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 535 |
44.7%
|
| 1 | Just once or twice | 82 |
6.8%
|
| 2 | Several times | 195 |
16.3%
|
| 3 | Many times | 184 |
15.4%
|
| 4 | Always | 187 |
15.6%
|
| 9 | Don't Know | 14 |
1.2%
|
| 998 | Refused | 0 |
0%
|