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Descriptive statistics
| CO2 | NC | ND | |
|---|---|---|---|
| Mean | 6.127 | 30,924.210 | 449.745 |
| Median | 6.320 | 19,682.500 | 438.500 |
| Maximum | 8.580 | 97,894.000 | 2003.000 |
| Minimum | 3.630 | 0.000 | 0.000 |
| Std. Dev | 1.057 | 30,921.330 | 405.705 |
| Skewness | −0.465 | 0.556 | 0.513 |
| Kurtosis | 2.996 | 1.929 | 2.328 |
| Jarque–Bera | 11.041* | 30.416* | 19.182* |
| Probability | 0.004 | 0.000 | 0.000 |
| Observations | 306 | 306 | 306 |
*, **, and *** represent 1%, 5%, and 10% level of significance, respectively
