China's fixed-asset investment (FAI) grew 5.9 percent year on year in 2018, 0.5 percentage point faster than that recorded in the first three quarters, the National Bureau of Statistics (NBS) said on Monday.

The FAI amounted to 63.56 trillion yuan (9.38 trillion U.S. dollars) last year, according to the NBS.

Private investment, accounting for about 62 percent of the total, posted a vigorous 8.7-percent increase, picking up pace from the 6-percent growth in 2017.

As another bright spot, the investment in high-tech and equipment manufacturing sectors remained strong, up by 16.1 percent and 11.1 percent, respectively.

In breakdown, the investment in the primary industry gained 12.9 percent last year, quickening from 11.8-percent growth in 2017. The investment in the secondary industry went up by 6.2 percent, up significantly from the 3.2-percent rise a year ago.

The investment in the tertiary industry expanded 5.5 percent in 2018.