| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | None | 431 |
31.9%
|
| 2 | A small amount | 162 |
12%
|
| 3 | Some | 97 |
7.2%
|
| 4 | A great deal | 80 |
5.9%
|
| 9 | Don't know | 580 |
43%
|
| 998 | Refused | 0 |
0%
|