China's macroeconomic performance index rose four points from August to hit 121.3 points in September, with some sectors entering the red and yellow zones, meaning they are going a bit too fast, according to the National Bureau of Statistics yesterday.

The macroeconomic performance index published by NBS show that the overall index was marked yellow, with two sectors, industrial output and fiscal income, entering red zones.

"This year, the industrial sector has been boosted by robust export demands and the fast development of the real estate industry, while the investment and output of iron and steel, nonferrous metals and cement industries was heated," said Wang Xiaoguang, a macro-economist with the Institute of Economic Research of the National Development and Reform Commission.

Residents' disposable income and consumer prices were in the yellow zone, while the remaining sectors were all stable.