 Until 2015, China was the world's fastest-growing major economy, with growth rates averaging 10% over 30 years.Its rapid and sustained economic expansion has lifted hundred of millions of people out of poverty and has made the nation a major engine of economic growth globally.By the end of 2015, China's economy accounted for 51 percent of the total economy in East Asia and commanded 59 percent of East Asia's trade, making China an economic powerhouse for regional growth as well as making the country the largest trading partner of virtually every East Asian country in the region.