| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 780 |
65%
|
| 1 | Just once or twice | 76 |
6.3%
|
| 2 | Several times | 141 |
11.8%
|
| 3 | Many times | 95 |
7.9%
|
| 4 | Always | 104 |
8.7%
|
| 9 | Don't Know | 4 |
0.3%
|
| 998 | Refused | 0 |
0%
|