| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 14 |
1.2%
|
| 0 | Never | 596 |
49.7%
|
| 1 | Occasionally | 426 |
35.5%
|
| 2 | Frequently | 148 |
12.3%
|
| 9 | Don't know | 15 |
1.3%
|
| 998 | Refused | 0 |
0%
|