China has revised its annual economic growth rate in 2014 to 7.3 percent from the previously released figure of 7.4 percent, the National Bureau of Statistics said on Monday. The bureau has revised down 2014 growth of the services sector by 0.3 percentage points to 7.8 percent, which helped drag down estimated GDP growth rate, it said. After the revision, the services sector accounted for 48.1 percent of GDP last year, down from the previously announced 48.2 percent, the bureau said.