| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 125 |
0.2%
|
| 0 | Never | 16980 |
31.5%
|
| 1 | Occasionally | 25632 |
47.5%
|
| 2 | Frequently | 10610 |
19.7%
|
| 9 | Don't know | 586 |
1.1%
|
| 98 | Refused | 2 |
0%
|