China's fixed-asset investments rose 25 percent year-on-year to hit 18.06 trillion yuan (2.83 trillion U.S. dollars) during the first eight months of the year, the National Bureau of Statistics (NBS) said Friday.

The figure was 0.4 percentage points lower than that of the past seven months, the NBS said in an online statement.

In August, fixed-asset investments rose by 1.16 percent month-on-month, up from 0.27 percent in July.

In the first eight months, investment in primary and secondary industries rose 23 percent and 27 percent year-on-year to 417.6 billion yuan and 7.92 trillion yuan, respectively. Tertiary industries saw a 23.6-percent increase in investment.

During the period, investment in eastern, central and western regions rose 22.6 percent, 30.1 percent and 29.4 percent, respectively.

Furthermore, investment in the nation's property sector rose 33.2 percent year-on-year to 3.78 trillion yuan, of which 2.71 trillion yuan went to residential housing, an increase of 36.4 percent over the same period last year.

Floor space transactions in the commercial housing sector rose 13.6 percent year-on-year to 598.54 million square meters during the first eight months. Residential housing registered a rise of 13.1 percent in its floor space transactions.