| Value | Category | Cases | |
|---|---|---|---|
| -2 | 1 |
0.2%
|
|
| 0 | 173 |
32.6%
|
|
| 1 | 287 |
54%
|
|
| 2 | 63 |
11.9%
|
|
| 3 | 7 |
1.3%
|
|
| Missing value | 91 |