Table 5.

Results of Italy.

	RMSE	MAE	MAPE	RMSRE	R ${}^2$	Time
ANFIS	99558.76	81394.93	239.668	5.3878	0.7720	-
PSO	5988.44	4383.08	2.830	0.0368	0.9636	21.59
GA	5772.62	4307.22	2.728	0.0348	0.9649	23.75
ABC	99655.58	55053.80	49.518	0.8160	0.7941	40.36
SCA	20644.06	15098.11	138.84	2.6193	0.8622	20.02
FPASSA	57704.18	38335.82	101.190	1.7320	0.9278	33.64
MPA	5465.66	3951.94	2.634	0.0372	0.9859	39.36