| Value | Category | Cases | |
|---|---|---|---|
| -1 | True missing | 13 |
0.2%
|
| 0 | 0 | 610 |
11.1%
|
| 1 | 1 | 484 |
8.8%
|
| 2 | 2 | 1038 |
18.9%
|
| 3 | 3 | 966 |
17.6%
|
| 4 | 4 | 701 |
12.8%
|
| 5 | 5 | 1667 |
30.4%
|