| Variable | The number of sample | Min | Max | Median | Mean | SD |
| Scores | 325 | 5.000 | 12.000 | 8.000 | 8.062 | 1.177 |
| Orect | 325 | 0 | 0.181 | 0.009 | 0.017 | 0.022 |
| Ind | 325 | 0.222 | 0.541 | 0.300 | 0.315 | 0.048 |
| Dual | 325 | 0 | 1.000 | 0 | 0.353 | 0.478 |
| Top1 | 325 | 6.48 | 80.6 | 34.09 | 35.399 | 14.68 |
| Manho | 325 | 0 | 1.000 | 1.000 | 0.82 | 0.38 |
| Countb | 325 | 0 | 4.631 | 1.117 | 1.305 | 0.991 |
| Board | 325 | 6.000 | 17.000 | 10.000 | 10.365 | 1.808 |
| Supv | 325 | 2.000 | 9.000 | 3.000 | 3.426 | 1.019 |
| Roa | 325 | −0.081 | 0.324 | 0.067 | 0.075 | 0.048 |
| Lev | 325 | 0.008 | 0.917 | 0.328 | 0.357 | 0.211 |
| Incom | 325 | −0.365 | 1.911 | 0.273 | 0.308 | 0.324 |
| Acf | 325 | −0.394 | 0.377 | 0.039 | 0.038 | 0.089 |
| Size | 325 | 19.723 | 26.097 | 21.281 | 21.536 | 1.156 |
| State | 325 | 0 | 1.000 | 0 | 0.134 | 0.341 |