| Value | Category | Cases | |
|---|---|---|---|
| -1 | True missing | 13 |
0.2%
|
| 0 | 0 | 680 |
12.4%
|
| 1 | 1 | 591 |
10.8%
|
| 2 | 2 | 994 |
18.1%
|
| 3 | 3 | 989 |
18.1%
|
| 4 | 4 | 664 |
12.1%
|
| 5 | 5 | 1548 |
28.3%
|