| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0.1%
|
| 0 | Never | 858 |
35.8%
|
| 1 | Rarely | 693 |
28.9%
|
| 2 | Often | 434 |
18.1%
|
| 3 | Always | 122 |
5.1%
|
| 9 | Don't know | 289 |
12%
|
| 998 | Refused | 0 |
0%
|