| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 591 |
49.3%
|
| 1 | Just once or twice | 115 |
9.6%
|
| 2 | Several times | 327 |
27.3%
|
| 3 | Many times | 135 |
11.3%
|
| 4 | Always | 32 |
2.7%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|