| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 751 |
62.7%
|
| 1 | Just once or twice | 216 |
18%
|
| 2 | Several times | 163 |
13.6%
|
| 3 | Many times | 46 |
3.8%
|
| 4 | Always | 12 |
1%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 10 |
0.8%
|