The growth rate for China's 2010 gross domestic product (GDP) has been revised, with an increase of 0.1 percentage points to a rate of 10.4 percent, the National Bureau of Statistics (NBS) announced Wednesday.

After the revision, China's 2010 GDP now stands at 40.12 trillion yuan (6.27 trillion U.S. dollars), up by 321.9 billion yuan from the previous figure released in February, the NBS said in a statement on its website.

The revision was based on verified analyses of the country's annual reports, financial statements and random surveys by the NBS, according to the bureau.

The NBS statement indicated that the newfound gains came from secondary industries and the country's service sector.

Manufacturing and construction growth for 2010 was revised to 12.4 percent, up 0.2 percentage points from the initial reading. The revised output of both industries came out to 18.75 trillion yuan.

The service sector grew faster than previously thought, reaching 17.30 trillion yuan last year at a growth rate of 9.6 percent year-on-year, up 0.1 percentage points from the February figure.

This was the second revision of the 2010 GDP growth figures. The NBS said that it will issue further revisions in the coming months.

Based on current statistics, the country's primary industries accounted for 10.1 percent of China's 2010 GDP, while secondary industries accounted for 46.8 percent and tertiary industries accounted for 43.1 percent.