| Value | Category | 
|---|---|
| 10 | partially correct | 
| 11 | partially correct | 
| 12 | partially correct | 
| 19 | other part. correct | 
| 20 | correct response | 
| 70 | incorrect response | 
| 71 | incorrect response | 
| 72 | incorrect response | 
| 73 | incorrect response | 
| 79 | other incor. response | 
| 90 | crossed out, ... | 
| 98 | not admin | 
| 99 | blank(missing) | 
| 101 | .A |