Complex sentence: The market share of plug-in electric passenger cars increased from 0.14% of new car sales in 2011 to 0.37% in 2012,0.62% in 2013, and reached 0.75% of new car sales during 2014.
Split into simpler sentences: The market share of plug-in electric passenger cars increased from 0.14% of new car sales in 2011 to 0.37% in 2012 and reached 0.62% of new car sales during 2013. The plug-in segment reached a market share of 0.72% of new car sales during 2014.