| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 4 |
0.3%
|
| 0 | Never | 106 |
8.8%
|
| 1 | Just once or twice | 31 |
2.6%
|
| 2 | Several times | 239 |
19.9%
|
| 3 | Many times | 446 |
37.2%
|
| 4 | Always | 366 |
30.5%
|
| 9 | Don't Know | 8 |
0.7%
|
| 998 | Refused | 0 |
0%
|