| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 3 |
1%
|
| 2 | O1 | 24 |
8.4%
|
| 3 | O2 | 73 |
25.5%
|
| 4 | O3 | 30 |
10.5%
|
| Missing value | 156 |
54.5%
|