| Country or area (DMU) | DEA efficiencies | The method in [21] | The method in [22] | Proposed method | Efficiency intervals | Rank | Efficiencies | Rank | Efficiencies | Rank |
| Argentina | 0.08978 | 0.00004, 0.08978 | 52 | 0.03364 | 55 | 0.00429 | 44 | Australia | 1.00000 | 0.00023, 1.00000 | 26 | 0.70622 | 5 | 0.02271 | 15 | Austria | 0.42598 | 0.00010, 0.42598 | 34 | 0.31406 | 17 | 0.00746 | 33 | Azerbaijan | 1.00000 | 0.00030, 1.00000 | 23 | 0.15484 | 32 | 0.02075 | 16 | Bahamas | 1.00000 | 0.00039, 1.00000 | 22 | 1.00000 | 1 | 0.08595 | 1 | Belarus | 1.00000 | 0.00212, 1.00000 | 2 | 0.58614 | 7 | 0.05144 | 4 | Belgium | 0.11826 | 0.00001, 0.11826 | 67 | 0.06027 | 50 | 0.00222 | 63 | Brazil | 0.03770 | 0.00004, 0.03770 | 54 | 0.01161 | 66 | 0.00180 | 65 | Britain | 0.22016 | 0.00004, 0.22016 | 51 | 0.14832 | 34 | 0.00405 | 51 | Bulgaria | 1.00000 | 0.00068, 1.00000 | 12 | 0.44803 | 10 | 0.04399 | 6 | Cameroon | 0.15419 | 0.00001, 0.15419 | 65 | 0.00006 | 73 | 0.00295 | 59 | Canada | 0.17040 | 0.00005, 0.17040 | 47 | 0.13567 | 36 | 0.00351 | 55 | Chile | 0.10916 | 0.00003, 0.10916 | 58 | 0.02007 | 61 | 0.00501 | 41 | China | 1.00000 | 0.00010, 1.00000 | 39 | 0.01105 | 67 | 0.00200 | 64 | China, Hong Kong | 0.08323 | 0.00004, 0.08323 | 53 | 0.08178 | 43 | 0.00177 | 67 | Chinese Taipei | 0.10304 | 0.00005, 0.10304 | 48 | 0.06486 | 49 | 0.00388 | 53 | Columbia | 0.05115 | 0.00001, 0.05115 | 71 | 0.01437 | 65 | 0.00125 | 69 | Croatia | 0.47307 | 0.00050, 0.47307 | 17 | 0.39662 | 13 | 0.02538 | 12 | Cuba | 1.00000 | 0.00155, 1.00000 | 4 | 0.67743 | 6 | 0.07166 | 2 | Czech Republic | 0.38991 | 0.00023, 0.38991 | 27 | 0.29448 | 18 | 0.01436 | 22 | Denmark | 0.93665 | 0.00003, 0.93665 | 56 | 0.34351 | 14 | 0.00872 | 29 | Dominican Republic | 0.17635 | 0.00002, 0.17635 | 62 | 0.00011 | 72 | 0.00468 | 42 | Egypt | 0.09781 | 0.00014, 0.09781 | 31 | 0.02138 | 60 | 0.00255 | 61 | Eritrea | 1.00000 | 0.00004, 1.00000 | 49 | 0.07643 | 44 | 0.00832 | 30 | Estonia | 1.00000 | 0.00069, 1.00000 | 11 | 0.91362 | 3 | 0.04368 | 7 | Ethiopia | 1.00000 | 0.00045, 1.00000 | 19 | 0.03171 | 56 | 0.00427 | 45 | Finland | 0.22139 | 0.00007, 0.22139 | 43 | 0.21505 | 24 | 0.00340 | 56 | France | 0.24442 | 0.00004, 0.24442 | 50 | 0.15195 | 33 | 0.00465 | 43 | Georgia | 1.00000 | 0.00340, 1.00000 | 1 | 0.25823 | 20 | 0.04032 | 8 | Germany | 0.51400 | 0.00005, 0.51400 | 44 | 0.18523 | 28 | 0.00508 | 40 | Greece | 0.68020 | 0.00025, 0.68020 | 25 | 0.42443 | 12 | 0.02014 | 17 | Hungary | 0.95138 | 0.00052, 0.95138 | 16 | 0.43782 | 11 | 0.03607 | 9 | India | 0.00337 | 0.00001, 0.00337 | 73 | 0.00054 | 70 | 0.00004 | 73 | Indonesia | 0.02180 | 0.00004, 0.02180 | 55 | 0.00559 | 68 | 0.00069 | 71 | Iran | 0.05368 | 0.00010, 0.05368 | 35 | 0.02631 | 58 | 0.00306 | 58 | Israel | 0.04833 | 0.00002, 0.04833 | 63 | 0.04831 | 52 | 0.00409 | 49 | Italy | 0.23392 | 0.00006, 0.23392 | 46 | 0.16714 | 30 | 0.00534 | 38 | Jamaica | 1.00000 | 0.00127, 1.00000 | 6 | 0.46528 | 9 | 0.06032 | 3 | Japan | 0.14589 | 0.00002, 0.14589 | 66 | 0.06896 | 47 | 0.00235 | 62 | Kazakhstan | 0.35502 | 0.00075, 0.35502 | 10 | 0.22199 | 23 | 0.01790 | 20 | Kenya | 0.85474 | 0.00134, 0.85474 | 5 | 0.08899 | 42 | 0.00914 | 28 | Korea, Republic | 0.47165 | 0.00015, 0.47165 | 30 | 0.20518 | 25 | 0.01028 | 26 | Latvia | 1.00000 | 0.00194, 1.00000 | 3 | 1.00000 | 2 | 0.04885 | 5 | Lithuania | 0.49341 | 0.00064, 0.49341 | 14 | 0.33673 | 15 | 0.02417 | 14 | Mexico | 0.02075 | 0.00003, 0.02075 | 59 | 0.01948 | 62 | 0.00096 | 70 | Mongolia | 1.00000 | 0.00007, 1.00000 | 42 | 0.12370 | 38 | 0.01290 | 23 | Morocco | 0.12119 | 0.00017, 0.12119 | 29 | 0.01883 | 63 | 0.00415 | 47 | Netherlands | 0.67746 | 0.00013, 0.67746 | 32 | 0.48570 | 8 | 0.01079 | 25 | New Zealand | 0.71636 | 0.00017, 0.71636 | 28 | 0.28606 | 19 | 0.01560 | 21 | Nigeria | 0.04570 | 0.00001, 0.04570 | 72 | 0.00502 | 69 | 0.00052 | 72 | Norway | 1.00000 | 0.00002, 1.00000 | 60 | 0.06775 | 48 | 0.00809 | 32 | Paraguay | 0.33965 | 0.00094, 0.33965 | 7 | 0.09677 | 41 | 0.00721 | 35 | Poland | 0.11449 | 0.00009, 0.11449 | 36 | 0.07181 | 45 | 0.00626 | 37 | Portugal | 0.14606 | 0.00008, 0.14606 | 41 | 0.14039 | 35 | 0.00423 | 46 | Romania | 0.54421 | 0.00068, 0.54421 | 13 | 0.22247 | 22 | 0.02859 | 10 | Russia | 1.00000 | 0.00043, 1.00000 | 20 | 0.19420 | 27 | 0.01886 | 19 | Serbia and Montenegro | 0.24230 | 0.00055, 0.24230 | 15 | 0.11067 | 39 | 0.00732 | 34 | Slovakia | 0.44929 | 0.00043, 0.44929 | 21 | 0.33348 | 16 | 0.02585 | 11 | Slovenia | 1.00000 | 0.00025, 1.00000 | 25 | 0.77679 | 4 | 0.02535 | 13 | South Africa | 0.06503 | 0.00011, 0.06503 | 33 | 0.05054 | 51 | 0.00367 | 54 | Spain | 0.32958 | 0.00008, 0.32958 | 40 | 0.18407 | 29 | 0.00518 | 39 | Sweden | 0.42647 | 0.00005, 0.42647 | 45 | 0.15964 | 31 | 0.00643 | 36 | Switzerland | 0.29930 | 0.00003, 0.29930 | 57 | 0.20458 | 26 | 0.00392 | 52 | Syria | 0.08710 | 0.00001, 0.08710 | 68 | 0.01739 | 64 | 0.00166 | 68 | Thailand | 0.09048 | 0.00009, 0.09048 | 37 | 0.02944 | 57 | 0.00415 | 48 | Trinidad and Tobago | 0.37071 | 0.00002, 0.37071 | 61 | 0.24628 | 21 | 0.01227 | 24 | Turkey | 0.05986 | 0.00009, 0.05986 | 38 | 0.04200 | 54 | 0.00407 | 50 | Ukraine | 0.68481 | 0.00082, 0.68481 | 9 | 0.12401 | 37 | 0.01891 | 18 | United Arabic Emirates | 0.07446 | 0.00001, 0.07446 | 69 | 0.00023 | 71 | 0.00316 | 57 | United States | 1.00000 | 0.00003, 1.00000 | 64 | 0.10257 | 40 | 0.00265 | 60 | Uzbekistan | 0.82038 | 0.00048, 0.82038 | 18 | 0.04699 | 53 | 0.00827 | 31 | Venezuela | 0.05859 | 0.00001, 0.05859 | 70 | 0.02452 | 59 | 0.00179 | 66 | Zimbabwe | 0.59653 | 0.00090, 0.59653 | 8 | 0.07011 | 46 | 0.01012 | 27 |
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