| Value | Category | 
|---|---|
| 10 | minimally correct | 
| 11 | minimally correct | 
| 12 | minimally correct | 
| 19 | other mini. corr. | 
| 20 | part. correct | 
| 21 | part. correct | 
| 29 | other part corr. | 
| 30 | complete | 
| 39 | other complete | 
| 70 | incorrect | 
| 79 | other incorrect | 
| 90 | crossed out,... | 
| 98 | not admin. | 
| 99 | missing | 
| 101 | .A |