Take a look around "中國 GDP 灌水", lead to this latest research claim that China's GDP has been misrepresent after 2008.

CITE: Relative to the official numbers, we estimate that GDP growth from 2008-2016 is 1.7 percentage points lower and the investment and savings rate in 2016 is 7 percentage points lower.

Ref: https://www.brookings.edu/bpea-articles/a-forensic-examinati...