| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0%
|
| 0 | Never | 1751 |
73%
|
| 1 | Just once or twice | 464 |
19.3%
|
| 2 | Several times | 143 |
6%
|
| 3 | Many times | 32 |
1.3%
|
| 4 | Always | 7 |
0.3%
|
| 9 | Don't Know | 2 |
0.1%
|
| 98 | Refused | 0 |
0%
|