Table 2.

Environmental efficiency scores and changes in ranking for each city in BTH, YRD and PRD from 2014 to 2018.

Region	No.	DMU	2014		2015		2016		2017		2018		Average
			Rank	Score	Rank	Score	Rank	Score	Rank	Score	Rank	Score	Rank	Score
BTH	1	Beijing	1	1.0000	1	1.0000	1	1.0000	1	1.0000	60↓	0.0864	20	0.8173
	2	Tianjin	45	0.4990	1↑	1.0000	31↓	0.8419	53↓	0.4034	1↑	1.0000	26	0.7489
	3	Baoding	25	0.8248	54↓	0.1067	43↑	0.6354	39↑	0.6258	36↑	0.5630	46	0.5511
	4	Tangshan	1	1.0000	1	1.0000	1	1.0000	1	1.0000	1	1.0000	1	1.0000
	5	Langfang	23	0.8588	50↓	0.1791	27↑	0.8765	35↓	0.6694	1↑	1.0000	32	0.7168
	6	Shijiazhuang	21	0.8853	1↑	1.0000	1	1.0000	43↓	0.5825	1↑	1.0000	14	0.8936
	7	Handan	1	1.0000	48↓	0.1926	47↑	0.5792	32↑	0.7210	28↑	0.7438	38	0.6473
	8	Qinhuangdao	1	1.0000	1	1.0000	1	1.0000	1	1.0000	1	1.0000	1	1.0000
	9	Zhangjiakou	36	0.6543	1↑	1.0000	29↓	0.8574	37↓	0.6561	38↓	0.5305	29	0.7397
	10	Chengde	1	1.0000	46↓	0.2227	1↑	1.0000	1	1.0000	1	1.0000	18	0.8445
	11	Cangzhou	37	0.6390	43	0.3656	50	0.5435	47	0.5079	1↑	1.0000	42	0.6112
	12	Xingtai	1	1.0000	1	1.0000	1	1.0000	22↑	0.9085	35↓	0.5832	13	0.8983
	13	Hengshui	1	1.0000	1	1.0000	1	1.0000	40↓	0.6066	45↓	0.4391	22	0.8091
YRD	1	Shanghai	59	0.1837	49↓	0.1837	60↓	0.2975	59↑	0.2975	59	0.1876	60	0.2300
	2	Nanjing	52	0.4079	40↑	0.4079	58↓	0.3527	57↑	0.3527	57	0.2834	57	0.3609
	3	Wuxi	47	0.4935	36↑	0.4935	28↑	0.8581	24↑	0.8581	1↑	1.0000	28	0.7406
	4	Changzhou	1	1.0000	60↓	0.0236	1↑	1.0000	1	1.0000	1	1.0000	24	0.8047
	5	Suzhou	58	0.3020	44↑	0.3020	49↓	0.5551	44↑	0.5551	53	0.3009	55	0.4030
	6	Nantong	46	0.4971	35↑	0.4971	44↓	0.5902	41↑	0.5902	52↓	0.3307	50	0.5010
	7	Yancheng	40	0.5736	30↑	0.5736	1↑	1.0000	1	1.0000	37↓	0.5585	27	0.7411
	8	Yangzhou	38	0.5999	29↑	0.5999	40↓	0.6853	34↑	0.6853	33↑	0.6232	39	0.6387
	9	Zhenjiang	42	0.5325	32↑	0.5325	33↓	0.7925	28↑	0.7925	56↓	0.2926	45	0.5885
	10	Taizhou，Jiangsu	48	0.4812	37↑	0.4812	53↓	0.4934	49	0.4934	46	0.4086	51	0.4716
	11	Hangzhou	54	0.3925	42↑	0.3925	1↑	1.0000	1	1.0000	42↓	0.4836	37	0.6537
	12	Ningbo	53	0.3967	41↑	0.3967	54↓	0.4694	51↑	0.4694	51	0.3464	53	0.4157
	13	Jiaxing	32	0.7213	26↑	0.7213	1↑	1.0000	1	1.0000	58↓	0.2164	31	0.7318
	14	Huzhou	29	0.7658	24↑	0.7658	26↓	0.9077	23↑	0.9077	27↓	0.7505	19	0.8195
	15	Shaoxing	33	0.7028	27↓	0.7028	1↓	1.0000	1	1.0000	1	1.0000	15	0.8811
	16	Jinhua	41	0.5550	31↓	0.5550	51↓	0.5430	45↓	0.5430	41↓	0.4959	47	0.5384
	17	Zhoushan	44	0.5004	34↑	0.5004	59↓	0.3445	58↑	0.3445	34↑	0.5950	52	0.4570
	18	Taizhou，Zhejiang	48	0.4812	37↑	0.4812	53↓	0.4934	49↑	0.4934	46↑	0.4086	51	0.4716
	19	Hefei	1	1.0000	1	1.0000	45↓	0.5870	42↑	0.5870	47↓	0.3885	33	0.7125
	20	Wuhu	1	1.0000	1	1.0000	1	1.0000	1	1.0000	24↓	0.8865	5	0.9773
	21	Bengbu	30	0.7490	25↑	0.7490	1↑	1.0000	1	1.0000	1	1.0000	12	0.8996
	22	Maanshan	20	0.9097	21↓	0.9097	1↑	1.0000	1	1.0000	1	1.0000	6	0.9639
	23	Huaibei	43	0.5261	33↑	0.5261	1↑	1.0000	1	1.0000	31↓	0.6446	30	0.7394
	24	Tongling	1	1.0000	1	1.0000	1	1.0000	1	1.0000	1	1.0000	1	1.0000
	25	Anqing	35	0.6578	28↑	0.6578	36↓	0.7550	30↑	0.7550	39↓	0.5104	36	0.6672
	26	Huangshan	1	1.0000	1	1.0000	1	1.0000	1	1.0000	1	1.0000	1	1.0000
	27	Chuzhou	1	1.0000	1	1.0000	30↓	0.8500	25↑	0.8500	1↑	1.0000	7	0.9400
	28	Fuyang	49	0.4745	38↑	0.4745	42↓	0.6582	36↑	0.6582	26↑	0.7796	43	0.6090
	29	Lu'an	1	1.0000	1	1.0000	52↓	0.5424	46↑	0.5424	54↓	0.2974	35	0.6765
	30	Bozhou	27	0.7912	23↓	0.7912	1↑	1.0000	1	1.0000	1	1.0000	10	0.9165
	31	Chizhou	24	0.8274	22↓	0.8274	1↓	1.0000	1	1.0000	1	1.0000	8	0.9309
	32	Xuancheng	1	1.0000	1	1.0000	32↓	0.8068	27↑	0.8068	30↓	0.6894	17	0.8606
PRD	1	Guangzhou	1	1.0000	60↓	0.0236	1↑	1.0000	1	1.0000	1	1.0000	24	0.8047
	2	Foshan	56	0.3846	56	0.0623	41↑	0.6650	56↓	0.3580	50↑	0.3580	56	0.3656
	3	Zhaoqing	31	0.7274	1↑	1.0000	25↓	0.9176	1↑	1.0000	1	1.0000	9	0.9290
	4	Shaoguan	26	0.8017	52↓	0.1333	1↑	1.0000	1	1.0000	1	1.0000	25	0.7870
	5	Qingyuan	34	0.6617	45↓	0.2257	35↑	0.7736	50↓	0.4810	43↑	0.4810	48	0.5246
	6	Yunfu	1	1.0000	55↓	0.0777	1↑	1.0000	1	1.0000	1	1.0000	21	0.8155
	7	Shenzhen	60	0.0439	1↑	1.0000	1	1.0000	1	1.0000	1	1.0000	23	0.8088
	8	Dongguan	55	0.3912	58↓	0.0357	55↑	0.4171	55	0.3689	49↑	0.3689	58	0.3164
	9	Huizhou	57	0.3631	59↓	0.0336	56↑	0.3970	60↓	0.2927	55↑	0.2927	59	0.2758
	10	Shanwei	22	0.8735	1↑	1.0000	57↓	0.3932	54↑	0.3884	48↑	0.3884	44	0.6087
	11	Heyuan	1	1.0000	57↓	0.0584	1↑	1.0000	48↓	0.5073	40↑	0.5073	41	0.6146
	12	Zhuhai	39	0.5808	51↓	0.1649	48↑	0.5595	38↑	0.6413	32↑	0.6413	49	0.5176
	13	Zhongshan	51	0.4720	53↓	0.1073	46↑	0.5858	52↓	0.4523	44↑	0.4523	54	0.4139
	14	Jiangmen	1	1.0000	1	1.0000	38↓	0.7163	26↑	0.8286	25↑	0.8286	16	0.8747
	15	Yangjiang	28	0.7898	47↓	0.2021	39↑	0.7034	33↑	0.7071	29↑	0.7071	40	0.6219

Note: The ↑/↓ indicates that this city's environmental efficiency score ranking is up/down compared to the previous year.