| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 337 |
28.1%
|
| 1 | Just once or twice | 424 |
35.3%
|
| 2 | Several times | 281 |
23.4%
|
| 3 | Many times | 143 |
11.9%
|
| 4 | Always | 13 |
1.1%
|
| 9 | Don't Know | 2 |
0.2%
|
| 998 | Refused | 0 |
0%
|