[Retracted] Environmental Efficiency of Node Cities in Chinese Section of Silk Road Economic Zone and Its Influencing Factors

Table 2

Environmental efficiencies of some node cities in Chinese section of the SREZ in 2011–2020.

	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
Xi’an	0.274	0.268	0.264	0.271	0.269	0.261	0.256	0.237	0.249	0.247
Lanzhou	0.285	0.300	0.270	0.248	0.228	0.198	0.207	0.183	0.183	0.185
Urumqi	0.377	0.363	0.386	0.351	0.334	0.294	0.253	0.219	0.205	0.196
Xining	0.139	0.142	0.134	0.130	0.126	0.126	0.116	0.095	0.096	0.094
Yinchuan	0.120	0.109	0.087	0.089	0.082	0.078	0.094	0.085	0.083	0.086
Chongqing	0.327	0.314	0.356	0.390	0.322	0.356	0.366	0.378	0.378	0.484
Chengdu	0.384	0.462	0.356	0.350	0.358	0.379	0.404	0.384	0.459	0.506
Zhengzhou	0.546	0.483	0.481	0.467	0.442	0.474	0.472	0.373	0.401	0.425
Wuhan	0.659	0.654	0.611	0.618	0.584	0.618	0.613	0.438	0.429	0.474
Shanghai	0.901	0.890	0.889	0.845	0.811	0.823	0.722	0.621	0.688	0.724