| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 330 |
27.5%
|
| 1 | Just once or twice | 227 |
18.9%
|
| 2 | Several times | 256 |
21.3%
|
| 3 | Many times | 151 |
12.6%
|
| 4 | Always | 220 |
18.3%
|
| 8 | Refused | 5 |
0.4%
|
| 9 | Don't Know | 11 |
0.9%
|