As gas prices increases each year, people starts to look for alternative way to save money. One of these ways is to invest in electric cars. Since to 2012, electrical cars sales have exploded from 73,000 sales to 542,000 in 2016. This is a 87% increased. This article also show what types of cars are the most popular and what company is leading over time. By looking at this graph, we can estimate that this chart will increase more over time. 

Article:

https://www.nanalyze.com/2017/03/electric-cars-usa/