| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 70 |
5.7%
|
| 1 | Just once or twice | 46 |
3.7%
|
| 2 | Several times | 229 |
18.6%
|
| 3 | Many times | 488 |
39.6%
|
| 4 | Always | 399 |
32.4%
|
| 9 | Don't Know | 0 |
0%
|
| 998 | Refused | 0 |
0%
|