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Table 2 Annual overall efficiencies in 31 Chinese cities from 2013 to 2016

From: The impact of media reports on energy and environmental efficiency in China: evidence from modified dynamic DEA with undesirable outputs

No.

City

2013

2014

2015

2016

1

Beijing

1.0000

1.0000

1.0000

0.6572

2

Changchun

0.6605

0.7283

0.5380

0.5798

3

Changsha

0.5716

0.4837

0.4817

0.5052

4

Chengdu

1.0000

0.9353

0.7527

0.7289

5

Chongqing

1.0000

1.0000

1.0000

1.0000

6

Fuzhou

0.7017

0.5871

0.5372

0.5310

7

Guangzhou

1.0000

1.0000

1.0000

1.0000

8

Guiyang

0.5288

0.5546

0.5564

0.5386

9

Harbin

0.7303

0.8016

0.5205

0.5229

10

Haikou

0.6274

0.5166

0.4795

0.6234

11

Hangzhou

0.5889

0.5369

0.5210

0.5609

12

Hefei

0.4867

0.4744

0.4586

0.4657

13

Huhehot

0.5686

0.5324

0.6147

0.5608

14

Jinan

0.3959

0.3946

0.4252

1.0000

15

Kunming

0.6139

0.6060

0.6949

0.7064

16

Lanzhou

0.3362

0.3344

0.3000

0.3001

17

Lhasa

0.6308

0.5204

0.4840

0.6040

18

Nanchang

0.5019

0.4876

0.4456

0.4458

19

Nanjing

0.3920

0.4478

0.4988

0.5019

20

Nanning

1.0000

1.0000

1.0000

1.0000

21

Shanghai

1.0000

1.0000

1.0000

1.0000

22

Shenyang

0.6182

0.6326

0.5003

0.6422

23

Shijiazhuang

0.3665

0.3588

0.3651

0.3482

24

Taiyuan

0.3471

0.3561

0.3413

0.3092

25

Tianjin

0.6600

0.5658

0.5154

0.5486

26

Wuhan

0.6552

0.5799

0.5606

0.5324

27

Urumqi

0.4294

0.4298

0.4406

0.4371

28

Xian

1.0000

0.8713

0.8277

0.7607

29

Xining

0.2768

0.2900

0.2703

0.3988

30

Yinchuan

0.3511

0.3311

0.2934

0.2764

31

Zhengzhou

0.6317

0.5207

0.5340

0.5959