| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 717 |
59.8%
|
| 1 | Just once or twice | 213 |
17.8%
|
| 2 | Several times | 180 |
15%
|
| 3 | Many times | 67 |
5.6%
|
| 4 | Always | 21 |
1.8%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don't Know | 0 |
0%
|