| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 315 |
26.5%
|
| 1 | Just once or twice | 116 |
9.7%
|
| 2 | Several times | 282 |
23.7%
|
| 3 | Many times | 370 |
31.1%
|
| 4 | Always | 103 |
8.7%
|
| 9 | Don't know | 4 |
0.3%
|
| 998 | Refused | 0 |
0%
|