| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 276 |
11.5%
|
| 1 | Just once or twice | 150 |
6.2%
|
| 2 | Several times | 610 |
25.3%
|
| 3 | Many times | 1138 |
47.3%
|
| 4 | Always | 233 |
9.7%
|
| 9 | Don't Know | 0 |
0%
|
| 998 | Refused | 0 |
0%
|