| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 167 |
13.9%
|
| 1 | Just once or twice | 113 |
9.4%
|
| 2 | Several times | 309 |
25.8%
|
| 3 | Many times | 461 |
38.4%
|
| 4 | Always | 150 |
12.5%
|
| 9 | Don't Know | 0 |
0%
|
| 998 | Refused | 0 |
0%
|