Android (operating system) store, and by September 2013, one billion Android devices have been activated. , the Google Play store has over 2.7 million Android applications published, and , apps have been downloaded more than 65 billion times. The operating system's success has made it a target for patent litigation as part of the so-called "smartphone wars" between technology companies. Android devices account for more than half of smartphone sales in most markets, including the US, while "only in Japan was Apple on top" (September–November 2013 numbers). At the end of 2013, over 1.5 billion Android smartphones have been sold in the four
Plug-in electric vehicles in the United States to 194,479 in 2017, up 23.7% from 2016. 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. As plug-in car sales slowed down during the 2015, the segment's market share fell to 0.66% of new car sales, with the all-electric segment flat at 0.41%, while plug-in hybrids declined to 0.25% from 0.34% in 2014. The plug-in market share increased to increased to 0.90% in 2016, and achieved the 1% market share mark for the first time