Table 4 Goodness of fit test of copula function.

Copula function		Clayton	Frank	Gaussian	Gumbel	t	Optimal copula	argument
Duration - Duration	AIC	77.75	81.31	77.65	82.04	79.75	Gaussian	0.816
	BIC	79.09	82.65	78.99	83.37	82.41
	RMSE	0.097	0.093	0.090	0.099	0.091
Severity - Severity	AIC	79.54	85.48	83.45	86.99	93.95	Clayton	1.672
	BIC	80.87	86.11	84.78	88.33	86.62
	RMSE	0.067	0.071	0.073	0.081	0.071
Area - Area	AIC	79.56	86.55	83.63	88.15	85.29	Clayton	1.540
	BIC	80.89	87.88	84.96	89.48	87.96
	RMSE	0.065	0.068	0.064	0.071	0.063

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