China's gross domestic product (GDP) accounted for 9.5 percent of the world's total in 2010, nearly double the five percent in 2005, said the National Bureau of Statistics (NBS) on Thursday.

China's GDP ranked the second in the world in 2010, up from the fifth in 2005, the NBS said in a statement on its website.

The NBS also said that China's 2010 GDP was equal to 40.2 percent of the figure of the United States, which is up from 2005's 17.9 percent.

However, the per capita GDP of China still lagged behind most of the countries, said the NBS.

Citing an estimate of the World Bank, the NBS said China's per capita gross national income (GNI) reached 3,650 U.S. dollars in 2009, lower than 124 other countries. In 2005, 127 countries had higher per capita GNI than China.

However, China's per capita GNI share of the world average jumped from 24.8 percent in 2005 to 41.8 percent in 2009, said the World Bank report.

In the meantime, China's overseas direct investment (ODI) in 2010 reached 59 billion U.S. dollars, an increase of 380 percent from that of 2005, the NBS said.

Jumping from the world's 18th in 2005 to the fifth in 2009, China's ODI accounted for 5.1 percent of the world's total, up from the 1.4 percent in 2005, said the NBS.