| Variables | Mean | Median | Min | Max | Standard deviation |
| ETR | 0.16 | 0.15 | 0.000 | 0.998 | 0.10 |
| SDI | 1.11 | 0 | 0 | 5 | 2.00 |
| PC | 0.23 | 0 | 0 | 1 | 0.42 |
| PCI | 0.54 | 0 | 0 | 3 | 1.04 |
| △PCI | 0.15 | 0 | 0 | 1 | 0.33 |
| SIZE | 21.90 | 21.74 | 20.08 | 24.27 | 1.13 |
| LEV | 0.45 | 0.46 | 0.104 | 0.82 | 0.21 |
| CAPINT | 0.23 | 0.20 | 0.01 | 0.58 | 0.16 |
| INVINT | 0.17 | 0.13 | 0.01 | 0.54 | 0.14 |
| ROA | 0.05 | 0.04 | -0.05 | 0.14 | 0.04 |
| TOP1(%) | 36.25 | 34.71 | 13.93 | 63.54 | 14.44 |
| MB | 2.25 | 1.86 | 1.02 | 5.58 | 1.20 |
| AGEPUB | 9.27 | 9 | 1 | 24 | 5.91 |
| TAXRATE | 0.19 | 0.15 | 0.06 | 0.33 | 0.05 |
| OPINION | 0.02 | 0 | 0 | 1 | 0.14 |
| STATE | 0.48 | 0 | 0 | 1 | 0.50 |