The pie charts compare data about the proportion of vehicles purchased by US residents in the years between 1980 and 2010.
Overall, it is clear that the proportion of cars has been dominating that of all vehicles. It showed that even if the rest were added together, they were still less than the proportion of cars.
In 1980, trucks were 5%, meaning that the 95% rate went to cars for that year. 10 years later, a new vehicle had been added to the list, SUVs, and its rate was almost the same as trucks in 1980, at 6%.
In the 2000s, the percentages of trucks and SUVs decreased by the same proportion, from 16% and 30% to 14% and 28%, in turn. It followed that the proportion of car sales increased to 58% from 54%, making it half of the total exchanges.
