| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 543 |
45.3%
|
| 1 | Just once or twice | 235 |
19.6%
|
| 2 | Many times | 210 |
17.5%
|
| 3 | Always | 176 |
14.7%
|
| 9 | Don't Know | 33 |
2.8%
|
| 998 | Refused | 0 |
0%
|