| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 0 | Never | 255 |
21.3%
|
| 1 | Occasionally | 640 |
53.3%
|
| 2 | Frequently | 299 |
24.9%
|
| 9 | Don't know | 4 |
0.3%
|
| 998 | Refused | 0 |
0%
|