| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 543 |
45.3%
|
| 1 | Just once or twice | 129 |
10.8%
|
| 2 | Several times | 213 |
17.8%
|
| 3 | Many times | 251 |
20.9%
|
| 4 | Always | 64 |
5.3%
|
| 9 | Don't Know | 0 |
0%
|
| 998 | Refused | 0 |
0%
|