Grade Level List of provinces
Grade 1 High Beijing, Qinghai
Grade 2 Higher Inner Mongolia, Shaanxi, Jilin, Heilongjiang, Shanghai, Sichuan, Hunan
Grade 3 Secondary Hubei, Gansu, Tibet, Yunnan, Guizhou, Chongqing, Henan, Shandong, Zhejiang, Jiangsu, Liaoning, Shanxi, Hebei, Xinjiang
Grade 4 Lower Tianjin, Guangxi, Hainan, Jiangxi, Fujian, Anhui, Ningxia
Grade 5 Low Guangdong