| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 4 |
0%
|
| 0 | Never | 12305 |
44.4%
|
| 1 | Just once or twice | 4731 |
17.1%
|
| 2 | Several times | 5898 |
21.3%
|
| 3 | Many times | 3654 |
13.2%
|
| 4 | Always | 1063 |
3.8%
|
| 9 | Don't Know | 58 |
0.2%
|
| 998 | Refused | 0 |
0%
|