| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 602 |
47.1%
|
| 1 | Just once or twice | 178 |
13.9%
|
| 2 | Several times | 200 |
15.6%
|
| 3 | Many times | 152 |
11.9%
|
| 4 | Always | 144 |
11.3%
|
| 9 | Don't Know | 1 |
0.1%
|
| 998 | Refused | 0 |
0%
|