| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 409 |
34.1%
|
| 1 | Just once or twice | 73 |
6.1%
|
| 2 | Several times | 253 |
21.1%
|
| 3 | Many times | 210 |
17.5%
|
| 4 | Always | 254 |
21.2%
|
| 9 | Don't Know | 1 |
0.1%
|
| 998 | Refused | 0 |
0%
|