| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 7 |
0.6%
|
| 0 | Never | 412 |
34.4%
|
| 1 | Just once or twice | 159 |
13.3%
|
| 2 | Several times | 234 |
19.5%
|
| 3 | Many times | 244 |
20.4%
|
| 4 | Always | 127 |
10.6%
|
| 9 | Don't Know | 16 |
1.3%
|
| 998 | Refused | 0 |
0%
|