| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2 | 1 |
0.5%
|
| 2 | 5 | 1 |
0.5%
|
| 3 | 6 | 5 |
2.3%
|
| 4 | 7 | 1 |
0.5%
|
| Missing value | 214 |
96.4%
|