| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1535 |
64%
|
| 1 | Just once or twice | 238 |
9.9%
|
| 2 | Several times | 162 |
6.8%
|
| 3 | Many times | 131 |
5.5%
|
| 4 | Always | 325 |
13.5%
|
| 9 | Don't Know | 9 |
0.4%
|
| 98 | Refused | 0 |
0%
|