| Value | Category |
|---|---|
| 10 | minimally corr. |
| 11 | minimally corr. |
| 19 | other mini. corr. |
| 20 | part. correct |
| 21 | part. correct |
| 29 | other part. corr. |
| 30 | complete resp. |
| 39 | other compl. |
| 70 | incorr. resp. |
| 76 | incorr. resp. |
| 79 | other incorr. |
| 90 | crossed out |
| 98 | not admin |
| 99 | missing |
| 101 | .A |