This infograhapic by South China Morning Post shows China's rapid economic growth by region over the past two decades. Each province can easily be traced back to its region (Tibet, Qinghai, Ningxia, Gansu, amd Xinjiang all use the salmon-color, which indicates that is is a "Big Northwest China" province as according to the legend). It is easy to spot that all light-blue colored/"Middle-Reaches of the Yangtze River" provinces (Anhui, Jiangxi, Hubei, and Hunan) are performing comparatively similar to each other, while provinces of other regions, such as Southwest China and North-Coastal China, have greater variability within regions.