| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 511 |
42.7%
|
| 1 | Just once or twice | 181 |
15.1%
|
| 2 | Several times | 154 |
12.9%
|
| 3 | Many times | 256 |
21.4%
|
| 4 | Always | 95 |
7.9%
|
| 9 | Don't Know | 0 |
0%
|
| 998 | Refused | 0 |
0%
|