| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 10 |
0.8%
|
| 0 | Never | 373 |
31.1%
|
| 1 | Occasionally | 552 |
46.1%
|
| 2 | Frequently | 256 |
21.4%
|
| 9 | Don't know | 7 |
0.6%
|
| 998 | Refused | 0 |
0%
|