BEIJING, Jan. 8 -- China's gross domestic product (GDP) growth for 2012 has been revised to 51.947 trillion yuan (8.52 trillion U.S. dollars), 52.8 billion yuan higher than the preliminary reading released last September, the National Bureau of Statistics (NBS) said Wednesday.

The revised GDP growth remains unchanged at 7.7 percent, according to a statement by the NBS.

It was the final GDP reading for 2012 according to a three-step publication procedure with more detailed data.