China became the world's largest automotive market in 2010 with output and sales exceeding 18 million units for the year. Car ownership is still relatively low and the output and sales are expected to double by 2020. The growth of China's automobile industry was particularly fast in 2009 and 2010, reaching levels of over 30% for sales and output. A total of 18.5 million vehicles were sold on the domestic market in 2011, of which 14.5 million passenger vehicles and 4 million commercial vehicles, representing an increase of about 5.2% and a decrease of about 6.3% from 2010, respectively.