JOIN US=The percentage was up from 5 per cent in 2005, and China's GDP amounted to 40.2 percent of that of the United States, compared with 17.9 percent in 2005, China's National Bureau of Statistics (NBS) said on its website.
China's GDP, or the total value of goods and services produced in an economy, came to USD5.88 trillion last year, compared with USD14.6 trillion for the US The bureau, however, said China's per capita GDP was still at the level of medium-income countries.
Experts estimate that China's per capita GDP reached USD3,400 by the end of 2010. The U.S. per capita GDP is estimated at USD47,400, more than 10 times larger.
Meanwhile, China's overseas direct investment made up about 5.1 per cent of the world's total, up from 1.4 per cent in 2005, the NBS said.
The country's overseas investment reached USD 59 billion last year, an increase of 380 per cent from a year earlier.