| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 300 |
25%
|
| 1 | Just once or twice | 199 |
16.6%
|
| 2 | Several times | 322 |
26.8%
|
| 3 | Many times | 331 |
27.6%
|
| 4 | Always | 48 |
4%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 0 |
0%
|