Table 3.
Descriptive statistics
| Variables | Mean | Median | Maximum | Minimum | Std. Dev | Skewness | Kurtosis | J-B Stat | Probability |
|---|---|---|---|---|---|---|---|---|---|
| CO2 | 0.361 | 0.338 | 0.477 | 0.084 | 0.120 | 0.217 | 1.652 | 4.682 | 0.196 |
| EFP | 0.814 | 0.768 | 3.781 | 1.503 | 0.105 | 0.236 | 1.105 | 3.715 | 0.138 |
| SE | 7.706 | 7.159 | 8.984 | 6.073 | 0.843 | -0.511 | 2.156 | 4.102 | 0.129 |
| TE | 63.316 | 62.754 | 80.717 | 36.880 | 12.663 | -0.387 | 2.082 | 3.422 | 0.181 |
| EPU | 3.103 | 2.052 | 5.736 | 2.810 | 0.217 | -0.213 | 1.580 | 3.701 | 0.194 |
| REC | 4.757 | 3.701 | 6.179 | 1.762 | 1.117 | -0.141 | 1.503 | 4.221 | 0.278 |
| NREC | 3.839 | 3.604 | 5.917 | 1.868 | 0.538 | -0.121 | 2.192 | 3.117 | 0.121 |
| ECI | 4.291 | 4.030 | 5.114 | 2.031 | 0.184 | -0.151 | 1.473 | 2.462 | 0.189 |
| TECH | 9.360 | 9.255 | 10.545 | 8.210 | 0.766 | 0.082 | 1.634 | 4.499 | 0.105 |
| EI | 4.220 | 4.422 | 4.840 | 3.177 | 0.527 | -0.558 | 1.921 | 5.621 | 0.160 |
| OPEN | 6.060 | 6.512 | 7.665 | 2.745 | 1.329 | 0.636 | 2.077 | 5.757 | 0.156 |
Source: Authors’ calculations