| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 56 |
4.7%
|
| 1 | Just once or twice | 27 |
2.3%
|
| 2 | Several times | 207 |
17.3%
|
| 3 | Many times | 546 |
45.5%
|
| 4 | Always | 361 |
30.1%
|
| 9 | Don't Know | 3 |
0.3%
|
| 998 | Refused | 0 |
0%
|