Table 6 Comparison of the overall efficiency results before and after considering the deletion of outliers

AUS

0.7178

0.6642

0.6429

0.9998

0.8443

0.8627

39.29%

27.12%

34.19%

AUT

1

1

1

BEL

0.7453

0.9301

0.7541

0.797

0.9334

0.8668

6.94%

0.35%

14.94%

CAN

1

1

1

CZE

1

1

0.9002

DNK

0.6655

0.6295

0.6551

0.71

0.6716

0.6776

6.69%

6.69%

3.43%

EST

0.9373

0.7745

0.8453

1

1

1

6.69%

29.12%

18.30%

FIN

1

1

1

1

1

1

0.00%

0.00%

0.00%

FRA

1

1

1

1

1

1

0.00%

0.00%

0.00%

DEU

0.7355

1

1

GRC

0.9229

1

1

HUN

1

1

1

1

1

1

0.00%

0.00%

0.00%

CHL

1

1

1

ISL

0.867

0.7916

0.8221

IRL

0.7344

0.8987

0.8783

0.8661

1

1

17.93%

11.27%

13.86%

ISR

1

1

1

ITA

0.7372

0.8175

0.7339

1

1

1

35.65%

22.32%

36.26%

JPN

1

1

1

LVA

1

1

1

1

1

1

0.00%

0.00%

0.00%

LTU

1

1

0.8578

1

1

1

0.00%

0.00%

16.58%

LUX

1

1

1

1

1

1

0.00%

0.00%

0.00%

MEX

1

1

1

NLD

1

1

1

1

1

1

0.00%

0.00%

0.00%

NZL

0.697

0.7754

0.7781

0.9999

0.9999

0.9999

43.46%

28.95%

28.51%

NOR

0.9071

0.9328

0.8682

1

1

1

10.24%

7.20%

15.18%

POL

1

1

1

1

1

1

0.00%

0.00%

0.00%

PRT

1

1

1

1

1

1

0.00%

0.00%

0.00%

KOR

1

1

1

SVK

1

1

1

SVN

0.8853

1

1

0.9359

1

1

5.72%

0.00%

0.00%

ESP

1

1

1

1

1

1

0.00%

0.00%

0.00%

SWE

1

1

1

1

1

1

0.00%

0.00%

0.00%

CHE

0.9985

0.9999

0.9999

0.9998

1

1

0.13%

0.01%

0.01%

TUR

1

1

1

GBR

1

1

1

1

1

1

0.00%

0.00%

0.00%

USA

1

1

1

1

1

1

0.00%

0.00%

0.00%

Average

0.932

0.9504

0.9371

0.9699

0.9761

0.9742

4.07%

2.70%

3.96%

Standard deviation

0.1106

0.0999

0.1057

0.0742

0.0732

0.0738