The annual return of the national Social Security Fund stood at 11.43 percent in 2014, the fund's vice-chairman said at the China Wealth Management 50 Forum on Friday.

"The fund's total asset scale has exceeded 1.5 trillion yuan ($240 billion)," said Wang Zhongmin, vice-chairman of the National Council for Social Security Fund, adding that last year's absolute return reached 139 billion yuan.

Private equity and alternative investments accounted for about 13 percent of the portfolio, said Wang.

"The investment return last year outgrew the inflation rate and GDP growth," concluded Wang.

China's 2014 economic growth slowed down to 7.4 percent, and the country's consumer prices grew 2 percent from one year earlier.

Wang said the fund's annual return in the past 14 years since its founding averaged 8.5 percent.