Table 1 Average efficiency by province and city from 2016 to 2020.

Eastern

Shanghai

0.9844

6

0.983

5

Shandong

0.84

11

0.84

9

Tianjin

1

1

1

1

Beijing

1

1

1

1

Jilin

0.6899

13

0.6862

13

Jiangsu

0.2497

26

0.2497

26

Hebei

0.3818

23

0.3676

23

Hainan

1

1

1

1

Zhejiang

0.2037

27

0.2037

27

Heilongjiang

0.7573

12

0.7493

12

Fujian

0.6469

14

0.6469

14

Guangdong

0.0316

28

0.0316

28

Liaoning

0.846

10

0.818

10

Mean

0.6639

0.6597

Central

Shanxi

0.5512

18

0.5195

18

Anhui

0.3614

24

0.3558

24

Jiangxi

0.3559

25

0.3369

25

Henan

0.4386

21

0.4386

21

Hubei

0.5023

19

0.4663

19

Hunan

0.6199

15

0.5963

15

Mean

0.4716

0.4522

Western

Yunnan

0.892

9

0.8513

8

Sichuan

0.0152

29

0.0151

29

Gansu

0.5598

17

0.5514

17

Ningxia

1

1

1

1

Qinghai

1

1

0.8167

11

Chongqing

0.9359

7

0.9359

6

Inner Mongolia

0.4819

20

0.4576

20

Guangxi

0.5825

16

0.5706

16

Guizhou

0.4017

22

0.4017

22

Shaanxi

0.9097

8

0.8997

7

Mean

0.6779

0.65