| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 362 |
30.2%
|
| 1 | Just once or twice | 140 |
11.7%
|
| 2 | Several times | 214 |
17.8%
|
| 3 | Many times | 184 |
15.3%
|
| 4 | Always | 146 |
12.2%
|
| 8 | Refused | 18 |
1.5%
|
| 9 | Don't know | 136 |
11.3%
|