| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.1%
|
| 0 | Never | 889 |
37%
|
| 1 | Rarely | 650 |
27.1%
|
| 2 | Often | 372 |
15.5%
|
| 3 | Always | 159 |
6.6%
|
| 9 | Don't know | 328 |
13.7%
|