| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1129 |
70.6%
|
| 1 | Just once or twice | 242 |
15.1%
|
| 2 | Several times | 141 |
8.8%
|
| 3 | Many times | 59 |
3.7%
|
| 4 | Always | 29 |
1.8%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|