| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 12 |
1%
|
| 0 | None | 960 |
80%
|
| 1 | Few | 152 |
12.7%
|
| 2 | Some | 49 |
4.1%
|
| 3 | Most | 25 |
2.1%
|
| 4 | All | 2 |
0.2%
|