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 Norway By July 2016, the market concentration had increased to 21.5 registered plug-in cars per 1,000 people, 3.6 times higher California's, the leading American market, and 14.2 times higher than the U.S. average concentration, then the world's largest country market. The Norwegian plug-in electric car market share of new car sales is the highest in the world. The segment's market share rose from 1.6% in 2011, to 3.1% in 2012, and reached 5.6% in 2013. Only the Netherlands, with 5.34% in 2013, achieved a similar market share. In 2014 the overall plug-in car take rate climbed to 13.8%, and reached 22.4%