| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 150 |
12.5%
|
| 1 | Just once or twice | 68 |
5.7%
|
| 2 | Several times | 198 |
16.5%
|
| 3 | Many times | 363 |
30.3%
|
| 4 | Always | 421 |
35.1%
|
| 9 | Don't Know | 0 |
0%
|
| 998 | Refused | 0 |
0%
|