变量 | N | Mean | S.D. | Min | P50 | Max |
SDC | 7200 | 1.96 | 4.33 | −1.10 | 0.90 | 34.96 |
CSR | 7200 | 25.03 | 12.22 | −1.24 | 23.56 | 73.05 |
REP | 7200 | 0.15 | 0.39 | 0 | 0 | 2 |
Size | 7200 | 22.78 | 1.33 | 20.44 | 22.56 | 26.94 |
Age | 7200 | 12.36 | 7.24 | −1 | 10.5 | 30 |
Growth | 7200 | 0.16 | 0.33 | −0.49 | 0.10 | 1.92 |
Board | 7200 | 2.14 | 0.20 | 1.39 | 2.20 | 2.83 |
LEV | 7200 | 0.42 | 0.19 | 0.07 | 0.41 | 0.85 |