| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 704 |
58.7%
|
| 1 | Just once or twice | 112 |
9.3%
|
| 2 | Several times | 246 |
20.5%
|
| 3 | Many times | 114 |
9.5%
|
| 4 | Always | 23 |
1.9%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0.1%
|