| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 18 |
1.5%
|
| -1 | Don't know | 22 |
1.8%
|
| 1 | Have done | 98 |
8.2%
|
| 2 | Might do | 135 |
11.3%
|
| 3 | Would never do | 927 |
77.3%
|