| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1311 |
54.6%
|
| 1 | Just once or twice | 541 |
22.5%
|
| 2 | Many times | 382 |
15.9%
|
| 3 | Always | 125 |
5.2%
|
| 9 | Don't Know | 41 |
1.7%
|
| 998 | Refused | 0 |
0%
|