| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 5 |
0.2%
|
| 0 | Never | 754 |
31.4%
|
| 1 | Rarely | 552 |
23%
|
| 2 | Often | 341 |
14.2%
|
| 3 | Always | 205 |
8.5%
|
| 9 | Don't know | 543 |
22.6%
|
| 998 | Refused | 0 |
0%
|