| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 0 | Never | 227 |
18.9%
|
| 1 | Occasionally | 529 |
44.1%
|
| 2 | Frequently | 437 |
36.4%
|
| 9 | Don't know | 5 |
0.4%
|
| 998 | Refused | 0 |
0%
|