| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 949 |
79.1%
|
| 1 | Just once or twice | 138 |
11.5%
|
| 2 | Several times | 79 |
6.6%
|
| 3 | Many times | 26 |
2.2%
|
| 4 | Always | 8 |
0.7%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 0 |
0%
|