Efficiency

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

Mean value

Comprehensive technical efficiency

Transaction phase

0.766

0.732

0.847

0.770

0.803

0.701

0.659

0.622

0.594

0.585

0.708

DEA effective

3

2

5

3

4

4

4

4

2

4

3.5

Pure technical efficiency

Transaction phase

0.956

0.952

0.955

0.934

0.954

0.911

0.921

0.895

0.888

0.877

0.924

DEA effective

12

13

14

10

14

10

13

9

8

12

11.5

Scale efficiency

Transaction phase

0.801

0.769

0.887

0.825

0.841

0.769

0.714

0.699

0.672

0.672

0.765

DEA effective

3

2

5

3

4

5

4

4

2

4

3.6