I have recently purchased a 2015 C-max hybrid SE. Never realized that driving a hybrid could be so fun. In each dash display option I see "6.1 L/100 km Average". My trip 1 and 2 displays 5.7 L/100 km and 5.5 L/100 km showing my current fuel economy. Does anyone know why the "6.1 L/100 km" shows as the average? Is this the rated overall combined average rating for this vehicle? Will it always display 6.1 L/100 km?