Table 6.

Clustering result of preschool education resources allocation.

	High Level	Medium Level	Low Level
2004	Beijing, Tibet	Shanghai	Tianjin, Hebei, Shanxi, Inner Mongolia, Liaoning, Jilin, Heilongjiang, Jiangsu, Zhejiang, Anhui, Fujian, Jiangxi, Shandong, Henan, Hubei, Hunan, Guangdong, Guangxi, Hainan, Chongqing, Sichuan, Guizhou, Yunnan, Shaanxi, Gansu, Qinghai, Ningxia, Xinjiang
2007	Shanghai	Beijing, Tianjin, Inner Mongolia, Tibet	Hebei, Shanxi, Liaoning, Jilin, Heilongjiang, Jiangsu, Zhejiang, Anhui, Fujian, Jiangxi, Shandong, Henan, Hubei, Hunan, Guangdong, Guangxi, Hainan, Chongqing, Sichuan, Guizhou, Yunnan, Shaanxi, Gansu, Qinghai, Ningxia, Xinjiang
2010	Beijing, Shanghai	Tianjin, Inner Mongolia, Liaoning, Jilin, Heilongjiang, Jiangsu, Zhejiang, Tibet, Shanxi, Qinghai	Hebei, Shanxi, Anhui, Fujian, Jiangxi, Shandong, Henan, Hubei, Hunan, Guangdong, Guangxi, Hainan, Chongqing, Sichuan, Guizhou, Yunnan, Gansu, Ningxia
2013	Beijing, Shanghai	Tianjin, Inner Mongolia, Jilin, Heilongjiang, Jiangsu, Zhejiang, Tibet, Shaanxi, Qinghai, Xinjiang	Hebei, Shanxi, Liaoning, Anhui, Fujian, Jiangxi, Shandong, Henan, Hubei, Hunan, Guangdong, Guangxi, Chongqing, Sichuan, Guizhou, Yunnan, Gansu, Ningxia, Xinjiang
2016	Beijing, Shanghai, Tibet	Tianjin, Inner Mongolia, Jilin, Heilongjiang, Jiangsu, Zhejiang, Hainan, Tibet, Shaanxi, Ningxia	Hebei, Shanxi, Liaoning, Jilin, Anhui, Fujian, Jiangxi, Shandong, Henan, Hubei, Hunan, Guangdong, Guangxi, Chongqing, Sichuan, Guizhou, Yunnan, Gansu, Qinghai, Xinjiang
2019	Beijing, Shanghai, Tibet	Tianjin, Inner Mongolia, Jiangsu, Zhejiang, Hainan	Hebei, Shanxi, Liaoning, Jilin, Heilongjiang, Anhui, Fujian, Jiangxi, Shandong, Henan, Hubei, Hunan, Guangdong, Guangxi, Chongqing, Sichuan, Guizhou, Yunnan, Shaanxi, Gansu, Qinghai, Ningxia, Xinjiang