| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 931 |
38.8%
|
| 1 | Just once or twice | 569 |
23.7%
|
| 2 | Several times | 503 |
21%
|
| 3 | Many times | 339 |
14.1%
|
| 4 | Always | 58 |
2.4%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 0 |
0%
|