| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 1 | None | 211 |
17.6%
|
| 2 | A small amount | 202 |
16.8%
|
| 3 | Some | 273 |
22.8%
|
| 4 | A great deal | 319 |
26.6%
|
| 9 | Don't know | 193 |
16.1%
|
| 998 | Refused | 0 |
0%
|