| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 64 |
5.3%
|
| 1 | Just once or twice | 47 |
3.9%
|
| 2 | Several times | 272 |
22.7%
|
| 3 | Many times | 465 |
38.8%
|
| 4 | Always | 352 |
29.3%
|
| 9 | Don't Know | 0 |
0%
|
| 98 | Refused | 0 |
0%
|