| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 0 | Never | 575 |
47.9%
|
| 1 | Just once or twice | 72 |
6%
|
| 2 | Several times | 256 |
21.3%
|
| 3 | Many times | 138 |
11.5%
|
| 4 | Always | 144 |
12%
|
| 9 | Don't Know | 13 |
1.1%
|
| 998 | Refused | 0 |
0%
|