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. 2023 Aug 9;9(8):e19028. doi: 10.1016/j.heliyon.2023.e19028

Fig. 6.

Fig. 6

Fig. 6

Fig. 6

a. Average environmental efficiency values for each city from 2014 to 2018. b. Distribution of environmental efficiency scores in 2014. c. Distribution of environmental efficiency scores in 2015. d. Distribution of environmental efficiency scores in 2016. e. Distribution of environmental efficiency scores in 2017. f. Distribution of environmental efficiency scores in 2018.