| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 6 |
0.5%
|
| 0 | Never | 667 |
55.6%
|
| 1 | Just once or twice | 85 |
7.1%
|
| 2 | Several times | 105 |
8.8%
|
| 3 | Many times | 137 |
11.4%
|
| 4 | Always | 198 |
16.5%
|
| 9 | Don't Know | 2 |
0.2%
|
| 998 | Refused | 0 |
0%
|