| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 837 |
34.9%
|
| 1 | Occasionally | 1060 |
44.2%
|
| 2 | Frequently | 490 |
20.4%
|
| 8 | Refused | 4 |
0.2%
|
| 9 | Don't know | 9 |
0.4%
|