| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 673 |
56.1%
|
| 1 | Just once or twice | 242 |
20.2%
|
| 2 | Several times | 188 |
15.7%
|
| 3 | Many times | 74 |
6.2%
|
| 4 | Always | 21 |
1.8%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don't Know | 1 |
0.1%
|