| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 664 |
55.3%
|
| 1 | Just once or twice | 139 |
11.6%
|
| 2 | Several times | 183 |
15.3%
|
| 3 | Many times | 114 |
9.5%
|
| 4 | Always | 98 |
8.2%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 2 |
0.2%
|