BEIJING - China's national per capita disposable income stood at 21,966 yuan ($3,349) in 2015, up 7.4 percent from 2014 in real terms, outpacing GDP growth, official data showed Tuesday.

Separately, urban per capita disposable income and rural per capita net income reached 31,195 yuan and 11,422 yuan respectively in 2015, up 6.6 percent and 7.5 percent in real terms after adjusting for inflation from 2014, according to the National Bureau of Statistics (NBS).

China's Gini coefficient, an index reflecting the rich-poor gap in which zero equals perfect equality, stood at 0.462 in 2015, dropping for seven years in a row after the index hit 0.491 in 2008, NBS data showed.

The average monthly wage of rural migrant workers, who's population reached 277.5 million in 2015, was 3,072 yuan, an increase of 7.2 percent over the previous year.

China aims to double its 2010 per capita income of urban and rural residents by 2020 to build a "moderately prosperous society".