The investment of most provinces in the first half of the year outpaced the national average of 20.1 percent, but general momentum slowed down compared with the same period last year.

All of the 31 provinces, municipalities and autonomous regions across the mainland have released their investment data calculated by local statistics bureaus. Twenty-three have beaten the national average, with the highest growth rate of 38.9 percent seen in the Tibet autonomous region.

The combined fixed-asset investment, a key pillar of China's local economy, was 909.9 billion yuan ($148.6 billion) more than the national total released by National Bureau of Statistics, or equivalent of Guangdong province's fixed-asset investment in the first half of the year.