| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 394 |
35.2%
|
| 1 | Just once or twice | 171 |
15.3%
|
| 2 | Several times | 243 |
21.7%
|
| 3 | Many times | 169 |
15.1%
|
| 4 | Always | 142 |
12.7%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 1 |
0.1%
|