Table 1.

Statistical evaluation of the developed models.

Country	Model	RMSE	MAE	MAPE	RMSRE	Time
Brazil	ANFIS	24,100	18,272	0.3973	0.0052	–
	PSO	21,182	15,111	0.3293	0.0045	18.92
	MPA	21,953	16,658	0.3628	0.0047	35.12
	CMPA	19,432	14,273	0.3117	0.0042	34.57
Russia	ANFIS	683	578	0.05041	0.00058	–
	PSO	504	387	0.03286	0.00041	19.40
	MPA	515	416	0.03561	0.00042	35.21
	CMPA	493	379	0.03223	0.00040	34.43

Bold as in almost published papers is indicating the best acheived results.