| # | Flag | Country | Informal payments to public officials (% of firms)Informal payments to public officials (% of firms) | Year |
|---|---|---|---|---|
| 1 | Vietnam | 90.7% | 2015 | |
| 2 | Papua New Guinea | 89.3% | 2015 | |
| 3 | East Timor | 85.6% | 2015 | |
| 4 | Syria | 83.8% | 2009 | |
| 5 | Solomon Islands | 81.9% | 2015 | |
| 6 | Republic of the Congo | 81.8% | 2009 | |
| 7 | Ukraine | 73.1% | 2013 | |
| 8 | Algeria | 66.6% | 2007 | |
| 9 | Cambodia | 66.3% | 2016 | |
| 10 | Guinea-Bissau | 63.1% | 2006 | |
| 11 | Philippines | 59.4% | 2015 | |
| 12 | Nigeria | 55.3% | 2014 | |
| 13 | Yemen | 55% | 2013 | |
| 14 | Liberia | 52.8% | 2017 | |
| 15 | Kyrgyzstan | 51.2% | 2013 | |
| 16 | Democratic Republic Of Congo | 50.4% | 2013 | |
| 17 | Angola | 48.9% | 2010 | |
| 18 | Guinea | 48.7% | 2016 | |
| 19 | Bangladesh | 48.5% | 2013 | |
| 20 | Sierra Leone | 46% | 2017 | |
| 21 | Pakistan | 45.8% | 2013 | |
| 22 | Cameroon | 45.6% | 2016 | |
| 23 | Mali | 43.9% | 2016 | |
| 24 | Madagascar | 43.1% | 2013 | |
| 25 | Central African Republic | 41.8% | 2011 | |
| 26 | Gabon | 41.8% | 2009 | |
| 27 | Afghanistan | 39.3% | 2014 | |
| 28 | Chad | 38% | 2018 | |
| 29 | Malaysia | 37.5% | 2015 | |
| 30 | Tajikistan | 37.2% | 2013 | |
| 31 | Laos | 36.7% | 2018 | |
| 32 | South Sudan | 36.1% | 2014 | |
| 33 | Hungary | 35.3% | 2013 | |
| 34 | Benin | 33.4% | 2016 | |
| 35 | Iraq | 31.8% | 2011 | |
| 36 | Burundi | 31.2% | 2014 | |
| 37 | Mongolia | 31.2% | 2013 | |
| 38 | Panama | 30.5% | 2010 | |
| 39 | Niger | 29.4% | 2017 | |
| 40 | Samoa | 29.3% | 2009 | |
| 41 | Ivory Coast | 29.2% | 2016 | |
| 42 | Uganda | 27.8% | 2013 | |
| 43 | Mauritania | 27.8% | 2014 | |
| 44 | Kenya | 26.3% | 2018 | |
| 45 | Suriname | 24.8% | 2018 | |
| 46 | Ghana | 24.3% | 2013 | |
| 47 | Venezuela | 23.7% | 2010 | |
| 48 | Kosovo | 22.4% | 2013 | |
| 49 | Indonesia | 21% | 2015 | |
| 50 | Lebanon | 20.9% | 2013 | |
| 51 | Russia | 20.5% | 2012 | |
| 52 | Kazakhstan | 20.4% | 2013 | |
| 53 | Tanzania | 20% | 2013 | |
| 54 | Bolivia | 19.2% | 2017 | |
| 55 | The Bahamas | 19.1% | 2010 | |
| 56 | Egypt | 19% | 2016 | |
| 57 | Romania | 18.7% | 2013 | |
| 58 | Slovakia | 18.7% | 2013 | |
| 59 | Guyana | 18.4% | 2010 | |
| 60 | Albania | 18.3% | 2013 | |
| 61 | Bulgaria | 18.2% | 2013 | |
| 62 | Jamaica | 17.9% | 2010 | |
| 63 | Montenegro | 17.6% | 2013 | |
| 64 | Thailand | 17.6% | 2016 | |
| 65 | Swaziland | 17% | 2016 | |
| 66 | India | 16.6% | 2014 | |
| 67 | Malawi | 16.6% | 2014 | |
| 68 | Myanmar | 16.5% | 2016 | |
| 69 | Moldova | 16.4% | 2013 | |
| 70 | Morocco | 15.9% | 2013 | |
| 71 | Dominican Republic | 15.3% | 2016 | |
| 72 | South Africa | 15.1% | 2007 | |
| 73 | Barbados | 14.7% | 2010 | |
| 74 | Portugal | 14.5% | 2005 | |
| 75 | Zimbabwe | 14.4% | 2016 | |
| 76 | Nepal | 14.3% | 2013 | |
| 77 | Poland | 14.3% | 2013 | |
| 78 | Mozambique | 14.1% | 2018 | |
| 79 | Slovenia | 14% | 2013 | |
| 80 | South Korea | 14% | 2005 | |
| 81 | Lesotho | 13.8% | 2016 | |
| 82 | Sri Lanka | 13.7% | 2011 | |
| 83 | Peru | 13.6% | 2017 | |
| 84 | Trinidad and Tobago | 13.4% | 2010 | |
| 85 | Croatia | 13.3% | 2013 | |
| 86 | Belarus | 13.2% | 2013 | |
| 87 | Gambia | 12.8% | 2018 | |
| 88 | Tonga | 12.7% | 2009 | |
| 89 | Brazil | 12.5% | 2009 | |
| 90 | Djibouti | 12.1% | 2013 | |
| 91 | Serbia | 11.9% | 2013 | |
| 92 | Mexico | 11.6% | 2010 | |
| 93 | Honduras | 10.9% | 2016 | |
| 94 | Colombia | 10.8% | 2017 | |
| 95 | Czech Republic | 10.7% | 2013 | |
| 96 | China | 10.7% | 2012 | |
| 97 | Fiji | 10.2% | 2009 | |
| 98 | Nicaragua | 10% | 2016 | |
| 99 | Zambia | 9.5% | 2013 | |
| 100 | Lithuania | 9.1% | 2013 | |
| 101 | Burkina Faso | 8.5% | 2009 | |
| 102 | Guatemala | 8.5% | 2017 | |
| 103 | Ethiopia | 8.3% | 2015 | |
| 104 | Republic of Ireland | 8.3% | 2005 | |
| 105 | Paraguay | 8.2% | 2017 | |
| 106 | Republic of Macedonia | 8.2% | 2013 | |
| 107 | Jordan | 7.7% | 2013 | |
| 108 | Botswana | 7.3% | 2010 | |
| 109 | Grenada | 7.1% | 2010 | |
| 110 | Argentina | 6.8% | 2017 | |
| 111 | Latvia | 6.7% | 2013 | |
| 112 | Azerbaijan | 6.6% | 2013 | |
| 113 | Senegal | 6.3% | 2014 | |
| 114 | Rwanda | 6.2% | 2011 | |
| 115 | Togo | 6.2% | 2016 | |
| 116 | Saint Kitts And Nevis | 6.1% | 2010 | |
| 117 | Cape Verde | 6% | 2009 | |
| 118 | Bosnia and Herzegovina | 5.9% | 2013 | |
| 119 | Mauritius | 5.9% | 2009 | |
| 120 | Sudan | 5.8% | 2014 | |
| 121 | Turkey | 5.8% | 2013 | |
| 122 | Tunisia | 5.7% | 2013 | |
| 123 | El Salvador | 5.5% | 2016 | |
| 124 | Greece | 5.2% | 2018 | |
| 125 | Antigua and Barbuda | 4.8% | 2010 | |
| 126 | Namibia | 4.6% | 2014 | |
| 127 | Armenia | 4.6% | 2013 | |
| 128 | Ecuador | 4.4% | 2017 | |
| 129 | Spain | 4.4% | 2005 | |
| 130 | Vanuatu | 4.2% | 2009 | |
| 131 | Costa Rica | 3.7% | 2010 | |
| 132 | Uzbekistan | 3.5% | 2013 | |
| 133 | Belize | 3% | 2010 | |
| 134 | Saint Vincent and the Grenadines | 2.8% | 2010 | |
| 135 | Uruguay | 2% | 2017 | |
| 136 | Georgia | 1.9% | 2013 | |
| 137 | Chile | 0.7% | 2010 | |
| 138 | Saint Lucia | 0.4% | 2010 | |
| 139 | Israel | 0.2% | 2013 | |
| 140 | Estonia | 0.2% | 2013 | |
| 141 | Bhutan | 0.1% | 2015 | |
| 142 | Federated States of Micronesia | 0% | 2009 | |
| 143 | Dominica | 0% | 2010 | |
| 144 | Eritrea | 0% | 2009 |