Arms imports (SIPRI trend indicator values), per unit of GDP by country
Arms imports (SIPRI trend indicator values) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.
What the numbers show
Arms imports (SIPRI trend indicator values), per unit of GDP is currently reported for 169 countries. The highest value is 0.0274 SIPRI trend indicator values per US$ of GDP in Ukraine; the lowest is 0 SIPRI trend indicator values per US$ of GDP in El Salvador.
The median across all reporting countries is 0.0003 SIPRI trend indicator values per US$ of GDP, and the mean is 0.0015 SIPRI trend indicator values per US$ of GDP.
Over the past decade 75 countries rose and 84 fell. The largest increase was in Ukraine (up 365,781.0%), and the largest decrease in Bolivia, Plurinational State of (down 100.0%).
Arms imports (SIPRI trend indicator values), per unit of GDP: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Ukraine | 0.0274 SIPRI trend indicator values per US$ of GDP | 2024 | up 365,781.0% | volatile |
| 2 | Bahrain | 0.018 SIPRI trend indicator values per US$ of GDP | 2024 | up 62,358.5% | volatile |
| 3 | Central African Republic | 0.0168 SIPRI trend indicator values per US$ of GDP | 2023 | up 486.0% | volatile |
| 4 | Micronesia, Federated States of | 0.0158 SIPRI trend indicator values per US$ of GDP | 2023 | — | volatile |
| 5 | Turkmenistan | 0.0145 SIPRI trend indicator values per US$ of GDP | 2021 | up 78.9% | volatile |
| 6 | Tonga | 0.0138 SIPRI trend indicator values per US$ of GDP | 2020 | up 20.9% | volatile |
| 7 | Seychelles | 0.0128 SIPRI trend indicator values per US$ of GDP | 2021 | up 69.1% | volatile |
| 8 | Mauritania | 0.0116 SIPRI trend indicator values per US$ of GDP | 2024 | up 857.7% | volatile |
| 9 | Guinea-Bissau | 0.0081 SIPRI trend indicator values per US$ of GDP | 1993 | down 73.4% | volatile |
| 10 | Qatar | 0.0053 SIPRI trend indicator values per US$ of GDP | 2024 | up 1,897.0% | volatile |
| 11 | Haiti | 0.005 SIPRI trend indicator values per US$ of GDP | 1985 | up 239.1% | volatile |
| 12 | Afghanistan | 0.0046 SIPRI trend indicator values per US$ of GDP | 2021 | down 87.2% | volatile |
| 13 | Namibia | 0.004 SIPRI trend indicator values per US$ of GDP | 2024 | up 2,361.3% | volatile |
| 14 | Kyrgyzstan | 0.0035 SIPRI trend indicator values per US$ of GDP | 2023 | up 482.9% | volatile |
| 15 | Kuwait | 0.0031 SIPRI trend indicator values per US$ of GDP | 2024 | down 27.5% | volatile |
| 16 | Cyprus | 0.0031 SIPRI trend indicator values per US$ of GDP | 2024 | up 1,175.6% | volatile |
| 17 | Eritrea | 0.003 SIPRI trend indicator values per US$ of GDP | 2007 | down 96.1% | volatile |
| 18 | Myanmar | 0.003 SIPRI trend indicator values per US$ of GDP | 2024 | up 78.6% | volatile |
| 19 | Suriname | 0.0027 SIPRI trend indicator values per US$ of GDP | 2024 | up 99.7% | volatile |
| 20 | Hungary | 0.0027 SIPRI trend indicator values per US$ of GDP | 2024 | up 5,364.4% | volatile |
| 21 | Fiji | 0.0027 SIPRI trend indicator values per US$ of GDP | 2024 | up 1,335.2% | volatile |
| 22 | Pakistan | 0.0026 SIPRI trend indicator values per US$ of GDP | 2024 | down 16.3% | volatile |
| 23 | Rwanda | 0.0025 SIPRI trend indicator values per US$ of GDP | 2023 | up 28.5% | volatile |
| 24 | Greece | 0.0024 SIPRI trend indicator values per US$ of GDP | 2024 | up 178.8% | volatile |
| 25 | Senegal | 0.0024 SIPRI trend indicator values per US$ of GDP | 2024 | up 426.5% | volatile |
| 26 | Barbados | 0.0022 SIPRI trend indicator values per US$ of GDP | 2009 | — | volatile |
| 27 | Slovak Republic | 0.0021 SIPRI trend indicator values per US$ of GDP | 2024 | up 4,092.3% | volatile |
| 28 | Malta | 0.002 SIPRI trend indicator values per US$ of GDP | 2023 | up 138.9% | volatile |
| 29 | Belarus | 0.0019 SIPRI trend indicator values per US$ of GDP | 2024 | up 129.4% | volatile |
| 30 | Kazakhstan | 0.0019 SIPRI trend indicator values per US$ of GDP | 2024 | up 403.4% | volatile |
| 31 | Brunei Darussalam | 0.0018 SIPRI trend indicator values per US$ of GDP | 2024 | down 74.2% | volatile |
| 32 | Serbia | 0.0017 SIPRI trend indicator values per US$ of GDP | 2024 | — | volatile |
| 33 | United Arab Emirates | 0.0017 SIPRI trend indicator values per US$ of GDP | 2024 | down 2.3% | volatile |
| 34 | Burkina Faso | 0.0016 SIPRI trend indicator values per US$ of GDP | 2024 | up 278.4% | volatile |
| 35 | South Sudan | 0.0016 SIPRI trend indicator values per US$ of GDP | 2015 | down 47.5% | volatile |
| 36 | Poland | 0.0016 SIPRI trend indicator values per US$ of GDP | 2024 | up 211.0% | volatile |
| 37 | Malawi | 0.0015 SIPRI trend indicator values per US$ of GDP | 2022 | up 1,241.1% | volatile |
| 38 | Tunisia | 0.0015 SIPRI trend indicator values per US$ of GDP | 2024 | up 55.7% | volatile |
| 39 | Estonia | 0.0015 SIPRI trend indicator values per US$ of GDP | 2024 | up 1,876.0% | volatile |
| 40 | Kosovo | 0.0013 SIPRI trend indicator values per US$ of GDP | 2023 | up 846.2% | volatile |
| 41 | Cape Verde | 0.0013 SIPRI trend indicator values per US$ of GDP | 2019 | up 23.4% | volatile |
| 42 | Trinidad and Tobago | 0.0013 SIPRI trend indicator values per US$ of GDP | 2021 | up 180.0% | volatile |
| 43 | Cambodia | 0.0013 SIPRI trend indicator values per US$ of GDP | 2023 | down 62.8% | volatile |
| 44 | Nicaragua | 0.001 SIPRI trend indicator values per US$ of GDP | 2019 | down 43.4% | volatile |
| 45 | Denmark | 0.001 SIPRI trend indicator values per US$ of GDP | 2024 | up 101.6% | volatile |
| 46 | Maldives | 0.001 SIPRI trend indicator values per US$ of GDP | 2024 | down 34.7% | volatile |
| 47 | Croatia | 0.001 SIPRI trend indicator values per US$ of GDP | 2024 | up 113.7% | volatile |
| 48 | Bahamas | 0.001 SIPRI trend indicator values per US$ of GDP | 2017 | up 216.1% | volatile |
| 49 | Venezuela, Bolivarian Republic of | 0.001 SIPRI trend indicator values per US$ of GDP | 2023 | down 75.1% | volatile |
| 50 | Equatorial Guinea | 0.0009 SIPRI trend indicator values per US$ of GDP | 2024 | down 78.6% | volatile |
| 51 | Saudi Arabia | 0.0009 SIPRI trend indicator values per US$ of GDP | 2024 | down 74.3% | volatile |
| 52 | Niger | 0.0009 SIPRI trend indicator values per US$ of GDP | 2023 | down 24.6% | volatile |
| 53 | Armenia | 0.0008 SIPRI trend indicator values per US$ of GDP | 2024 | down 43.8% | volatile |
| 54 | Belgium | 0.0008 SIPRI trend indicator values per US$ of GDP | 2024 | up 325.7% | volatile |
| 55 | New Zealand | 0.0008 SIPRI trend indicator values per US$ of GDP | 2024 | up 83.4% | volatile |
| 56 | Tanzania, United Republic of | 0.0007 SIPRI trend indicator values per US$ of GDP | 2021 | down 67.3% | volatile |
| 57 | Romania | 0.0007 SIPRI trend indicator values per US$ of GDP | 2024 | — | volatile |
| 58 | Norway | 0.0007 SIPRI trend indicator values per US$ of GDP | 2024 | up 2,146.3% | volatile |
| 59 | Burundi | 0.0007 SIPRI trend indicator values per US$ of GDP | 2019 | up 23.7% | volatile |
| 60 | Singapore | 0.0006 SIPRI trend indicator values per US$ of GDP | 2024 | up 181.3% | volatile |
| 61 | Montenegro | 0.0006 SIPRI trend indicator values per US$ of GDP | 2024 | up 142.4% | volatile |
| 62 | Lithuania | 0.0006 SIPRI trend indicator values per US$ of GDP | 2024 | up 188.1% | volatile |
| 63 | Botswana | 0.0006 SIPRI trend indicator values per US$ of GDP | 2024 | up 1.7% | volatile |
| 64 | Australia | 0.0006 SIPRI trend indicator values per US$ of GDP | 2024 | down 2.8% | volatile |
| 65 | Zimbabwe | 0.0006 SIPRI trend indicator values per US$ of GDP | 2023 | — | volatile |
| 66 | Korea | 0.0005 SIPRI trend indicator values per US$ of GDP | 2024 | up 12.8% | volatile |
| 67 | Philippines | 0.0005 SIPRI trend indicator values per US$ of GDP | 2024 | up 1,178.0% | volatile |
| 68 | Bosnia and Herzegovina | 0.0005 SIPRI trend indicator values per US$ of GDP | 2021 | — | volatile |
| 69 | Georgia | 0.0005 SIPRI trend indicator values per US$ of GDP | 2024 | up 793.3% | volatile |
| 70 | Algeria | 0.0005 SIPRI trend indicator values per US$ of GDP | 2024 | down 84.1% | volatile |
| 71 | Syrian Arab Republic | 0.0005 SIPRI trend indicator values per US$ of GDP | 2021 | down 93.5% | volatile |
| 72 | Congo, Democratic Republic of the | 0.0005 SIPRI trend indicator values per US$ of GDP | 2024 | up 1,512.8% | volatile |
| 73 | Jamaica | 0.0005 SIPRI trend indicator values per US$ of GDP | 2024 | up 547.9% | volatile |
| 74 | Albania | 0.0004 SIPRI trend indicator values per US$ of GDP | 2024 | down 15.7% | volatile |
| 75 | Lao People's Democratic Republic | 0.0004 SIPRI trend indicator values per US$ of GDP | 2024 | down 73.2% | volatile |
| 76 | Lesotho | 0.0004 SIPRI trend indicator values per US$ of GDP | 2019 | down 24.7% | volatile |
| 77 | Yemen | 0.0004 SIPRI trend indicator values per US$ of GDP | 2018 | down 72.7% | volatile |
| 78 | Jordan | 0.0004 SIPRI trend indicator values per US$ of GDP | 2024 | down 91.6% | volatile |
| 79 | Israel | 0.0004 SIPRI trend indicator values per US$ of GDP | 2024 | down 77.7% | volatile |
| 80 | Azerbaijan | 0.0004 SIPRI trend indicator values per US$ of GDP | 2024 | down 95.5% | volatile |
| 81 | Mali | 0.0004 SIPRI trend indicator values per US$ of GDP | 2024 | up 538.3% | volatile |
| 82 | Guyana | 0.0004 SIPRI trend indicator values per US$ of GDP | 2024 | — | volatile |
| 83 | Lebanon | 0.0003 SIPRI trend indicator values per US$ of GDP | 2024 | up 177.8% | volatile |
| 84 | Panama | 0.0003 SIPRI trend indicator values per US$ of GDP | 1989 | down 78.1% | volatile |
| 85 | Somalia | 0.0003 SIPRI trend indicator values per US$ of GDP | 2024 | down 43.6% | volatile |
| 86 | Sierra Leone | 0.0003 SIPRI trend indicator values per US$ of GDP | 2016 | down 88.1% | volatile |
| 87 | Uganda | 0.0003 SIPRI trend indicator values per US$ of GDP | 2023 | down 52.6% | volatile |
| 88 | Belize | 0.0003 SIPRI trend indicator values per US$ of GDP | 2023 | down 63.3% | volatile |
| 89 | Ethiopia | 0.0003 SIPRI trend indicator values per US$ of GDP | 2024 | down 46.0% | volatile |
| 90 | India | 0.0003 SIPRI trend indicator values per US$ of GDP | 2024 | down 80.2% | volatile |
| 91 | Mauritius | 0.0003 SIPRI trend indicator values per US$ of GDP | 2022 | down 85.4% | volatile |
| 92 | Netherlands | 0.0003 SIPRI trend indicator values per US$ of GDP | 2024 | up 3,242.0% | volatile |
| 93 | Papua New Guinea | 0.0003 SIPRI trend indicator values per US$ of GDP | 2023 | up 126.0% | volatile |
| 94 | Türkiye | 0.0003 SIPRI trend indicator values per US$ of GDP | 2024 | down 82.7% | volatile |
| 95 | Tajikistan | 0.0003 SIPRI trend indicator values per US$ of GDP | 2022 | down 40.9% | volatile |
| 96 | Benin | 0.0003 SIPRI trend indicator values per US$ of GDP | 2024 | up 74.8% | volatile |
| 97 | Nigeria | 0.0003 SIPRI trend indicator values per US$ of GDP | 2024 | down 34.3% | volatile |
| 98 | Slovenia | 0.0003 SIPRI trend indicator values per US$ of GDP | 2024 | up 1,189.2% | volatile |
| 99 | Guinea | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | down 57.9% | volatile |
| 100 | Japan | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | up 267.9% | volatile |
| 101 | Latvia | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | up 37.6% | volatile |
| 102 | Finland | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | down 67.8% | volatile |
| 103 | Russia | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | up 112.5% | volatile |
| 104 | Cuba | 0.0002 SIPRI trend indicator values per US$ of GDP | 2004 | down 96.8% | volatile |
| 105 | Togo | 0.0002 SIPRI trend indicator values per US$ of GDP | 2023 | down 91.2% | volatile |
| 106 | Congo | 0.0002 SIPRI trend indicator values per US$ of GDP | 2021 | down 36.6% | volatile |
| 107 | Ecuador | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | down 63.0% | volatile |
| 108 | Chad | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | down 93.7% | volatile |
| 109 | Brazil | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | up 130.6% | volatile |
| 110 | Portugal | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | up 1,391.5% | volatile |
| 111 | Honduras | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | down 71.2% | volatile |
| 112 | Egypt | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | down 86.8% | volatile |
| 113 | Italy | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | up 210.2% | volatile |
| 114 | Mongolia | 0.0002 SIPRI trend indicator values per US$ of GDP | 2022 | down 97.2% | volatile |
| 115 | United Kingdom | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | up 147.4% | volatile |
| 116 | Bangladesh | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | down 86.1% | volatile |
| 117 | Uzbekistan | 0.0002 SIPRI trend indicator values per US$ of GDP | 2023 | down 19.8% | volatile |
| 118 | Angola | 0.0002 SIPRI trend indicator values per US$ of GDP | 2024 | up 1,090.9% | volatile |
| 119 | Czechia | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | up 119.2% | volatile |
| 120 | Morocco | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | down 97.0% | volatile |
| 121 | Kenya | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | down 43.3% | volatile |
| 122 | Thailand | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | down 46.5% | volatile |
| 123 | Indonesia | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | down 90.1% | volatile |
| 124 | Ghana | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | down 48.4% | volatile |
| 125 | Paraguay | 0.0001 SIPRI trend indicator values per US$ of GDP | 2021 | down 47.2% | volatile |
| 126 | Costa Rica | 0.0001 SIPRI trend indicator values per US$ of GDP | 2019 | — | volatile |
| 127 | Viet Nam | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | down 97.7% | volatile |
| 128 | Uruguay | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | down 17.0% | volatile |
| 129 | Ireland | 0.0001 SIPRI trend indicator values per US$ of GDP | 2023 | down 26.0% | volatile |
| 130 | Sweden | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | up 46.6% | volatile |
| 131 | Palestine, State of | 0.0001 SIPRI trend indicator values per US$ of GDP | 2023 | down 79.2% | volatile |
| 132 | Libya | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | down 93.4% | volatile |
| 133 | Sri Lanka | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | up 49.1% | volatile |
| 134 | Iran, Islamic Republic of | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | up 191.8% | volatile |
| 135 | Spain | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | up 9.6% | volatile |
| 136 | Iraq | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | down 97.0% | volatile |
| 137 | Dominican Republic | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | up 471.0% | volatile |
| 138 | South Africa | 0.0001 SIPRI trend indicator values per US$ of GDP | 2023 | up 3,052.9% | volatile |
| 139 | Madagascar | 0.0001 SIPRI trend indicator values per US$ of GDP | 2020 | — | volatile |
| 140 | Argentina | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | up 490.9% | volatile |
| 141 | Canada | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | down 62.5% | volatile |
| 142 | France | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | up 901.2% | volatile |
| 143 | North Macedonia | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | down 36.2% | volatile |
| 144 | Guatemala | 0.0001 SIPRI trend indicator values per US$ of GDP | 2023 | up 42.7% | volatile |
| 145 | Germany | 0.0001 SIPRI trend indicator values per US$ of GDP | 2024 | up 112.9% | volatile |
| 146 | Gabon | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 57.9% | volatile |
| 147 | Colombia | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 89.7% | volatile |
| 148 | Mozambique | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 95.1% | volatile |
| 149 | Chile | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 91.8% | volatile |
| 150 | United States | 0 SIPRI trend indicator values per US$ of GDP | 2024 | up 29.8% | volatile |
| 151 | Cameroon | 0 SIPRI trend indicator values per US$ of GDP | 2023 | down 99.0% | volatile |
| 152 | Sudan | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 97.0% | volatile |
| 153 | Zambia | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 94.4% | volatile |
| 154 | Oman | 0 SIPRI trend indicator values per US$ of GDP | 2023 | down 99.3% | volatile |
| 155 | Switzerland | 0 SIPRI trend indicator values per US$ of GDP | 2023 | up 1,177.3% | volatile |
| 156 | Côte d'Ivoire | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 72.0% | volatile |
| 157 | Bulgaria | 0 SIPRI trend indicator values per US$ of GDP | 2022 | down 64.0% | volatile |
| 158 | Luxembourg | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 77.4% | volatile |
| 159 | Mexico | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 61.5% | volatile |
| 160 | Austria | 0 SIPRI trend indicator values per US$ of GDP | 2024 | up 433.0% | volatile |
| 161 | Malaysia | 0 SIPRI trend indicator values per US$ of GDP | 2023 | down 92.8% | volatile |
| 162 | Peru | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 98.2% | volatile |
| 163 | China (People’s Republic of) | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 96.0% | volatile |
| 164 | Bolivia, Plurinational State of | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 100.0% | volatile |
| 164 | Djibouti | 0 SIPRI trend indicator values per US$ of GDP | 2023 | down 100.0% | volatile |
| 164 | Gambia | 0 SIPRI trend indicator values per US$ of GDP | 2023 | down 100.0% | volatile |
| 164 | Liberia | 0 SIPRI trend indicator values per US$ of GDP | 2022 | — | volatile |
| 164 | Nepal | 0 SIPRI trend indicator values per US$ of GDP | 2021 | down 100.0% | volatile |
| 164 | El Salvador | 0 SIPRI trend indicator values per US$ of GDP | 2024 | down 100.0% | volatile |
Regions and income groups
Aggregates are excluded from the country ranking above so that a region can never outrank a country.
- Europe & Central Asia (excluding high income) 0.0027 SIPRI trend indicator values per US$ of GDP
- Europe & Central Asia (IDA & IBRD countries) 0.0014 SIPRI trend indicator values per US$ of GDP
- Arab World 0.0013 SIPRI trend indicator values per US$ of GDP
- Middle East, North Africa, Afghanistan & Pakistan 0.0012 SIPRI trend indicator values per US$ of GDP
- Central Europe and the Baltics 0.0012 SIPRI trend indicator values per US$ of GDP
- IDA total 0.0012 SIPRI trend indicator values per US$ of GDP
- IDA blend 0.001 SIPRI trend indicator values per US$ of GDP
- Middle East, North Africa, Afghanistan & Pakistan (IDA & IBRD) 0.0006 SIPRI trend indicator values per US$ of GDP
- Middle East, North Africa, Afghanistan & Pakistan (excluding high income) 0.0006 SIPRI trend indicator values per US$ of GDP
- Other small states 0.0006 SIPRI trend indicator values per US$ of GDP
- Least developed countries 0.0005 SIPRI trend indicator values per US$ of GDP
- IDA only 0.0005 SIPRI trend indicator values per US$ of GDP
How this figure is calculated
Arms imports (SIPRI trend indicator values) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.
Arms imports (SIPRI trend indicator values) ÷ GDP (current US$)
Computed from
- Arms imports Arms Transfers Programme, Stockholm International Peace Research Institute (SIPRI)
- GDP Country official statistics, National Statistical Organizations and/or Central Banks
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
Arms imports (SIPRI trend indicator values) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.