| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 829 |
69.1%
|
| 1 | Just once or twice | 242 |
20.2%
|
| 2 | Several times | 90 |
7.5%
|
| 3 | Many times | 29 |
2.4%
|
| 4 | Always | 7 |
0.6%
|
| 9 | Don't Know | 3 |
0.3%
|
| 998 | Refused | 0 |
0%
|