| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 42 |
3.6%
|
| 1 | Very little | 52 |
4.4%
|
| 2 | Good | 132 |
11.2%
|
| 3 | A great deal | 955 |
80.7%
|
| 9 | Missing | 2 |
0.2%
|