Table 2.

Best performing model based on MAPE.

Number of variables	Model variables	MAPE
1	$V_t$	0.1200
2	$V_t,G_t$	0.1148
3	$V_t,G_t,G_{t-2}$	0.1100
4	$V_t,V_{t-3},G_t,G_{t-2}$	0.1098