| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 1 | None | 128 |
10.7%
|
| 2 | A small amount | 213 |
17.8%
|
| 3 | Some | 235 |
19.6%
|
| 4 | A great deal | 464 |
38.7%
|
| 9 | Don't know | 158 |
13.2%
|
| 998 | Refused | 0 |
0%
|