| Value | Category | Cases | |
|---|---|---|---|
| 1 | -99 | 3 |
0.1%
|
| 2 | -97 | 1 |
0%
|
| 3 | 0 | 2163 |
48.7%
|
| 4 | 1 | 784 |
17.6%
|
| Missing value | 1493 |
33.6%
|