BEIJING — China’s economy is slowing, and the slowdown is probably worse than Beijing says.

Official numbers released on Monday show an economy that is posting new, but manageable, lows. For the last three months of 2018, growth came in at 6.4 percent compared with a year earlier. That’s the slowest pace since a decade ago, when China was grappling with the global financial crisis.

For the full year, according to official data, the Chinese economy grew 6.6 percent. That’s the weakest pace of growth since 1990, when China’s economic miracle stumbled in the aftermath of the crackdown on protesters in Tiananmen Square the year before.

As slowdowns go, the numbers indicate a mild one befitting a big, maturing economy like China’s. While the figures match historic lows, they show only a small drop from previous periods.

Monthly data released on Monday also suggested better-than-expected consumer spending and industrial production in December, raising the possibility that growth is stabilizing.