| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 6 |
0.5%
|
| 0 | Never | 888 |
74%
|
| 1 | Just once or twice | 142 |
11.8%
|
| 2 | Several times | 92 |
7.7%
|
| 3 | Many times | 52 |
4.3%
|
| 4 | Always | 17 |
1.4%
|
| 9 | Don't Know | 3 |
0.3%
|
| 998 | Refused | 0 |
0%
|