| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 77 |
6.5%
|
| 1 | Very little | 199 |
16.8%
|
| 2 | Good | 412 |
34.8%
|
| 3 | A great deal | 491 |
41.5%
|
| 9 | Missing | 4 |
0.3%
|