| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 651 |
54.3%
|
| 1 | Just once or twice | 198 |
16.5%
|
| 2 | Several times | 184 |
15.3%
|
| 3 | Many times | 81 |
6.8%
|
| 4 | Always | 68 |
5.7%
|
| 8 | Refused | 4 |
0.3%
|
| 9 | Don't know | 14 |
1.2%
|