| Year Since | Country | % Correct |
|---|---|---|
| 1783 | United States | 93%
|
| 1649 | United Kingdom | 90%
|
| 1917 | Russia | 85%
|
| 1870 | France | 83%
|
| 1867 | Mexico | 83%
|
| 1911 | China | 75%
|
| 1918 | Germany | 75%
|
| 1946 | Italy | 75%
|
| 1945 | South Korea | 75%
|
| 1931 | Spain | 73%
|
| 1889 | Brazil | 70%
|
| 1979 | Iran | 70%
|
| 1918 | Poland | 70%
|
| 1917 | Ukraine | 70%
|
| 1974 | Greece | 68%
|
| 1824 | Peru | 68%
|
| 1918 | Finland | 65%
|
| 1950 | India | 65%
|
| 1949 | Ireland | 65%
|
| 1816 | Argentina | 63%
|
| 1958 | Iraq | 63%
|
| 1828 | Uruguay | 63%
|
| 1918 | Austria | 60%
|
| 1818 | Chile | 60%
|
| 1819 | Colombia | 60%
|
| 1953 | Egypt | 60%
|
| 1944 | Iceland | 60%
|
| 1811 | Paraguay | 60%
|
| 1961 | South Africa | 60%
|
| 1923 | Turkey | 60%
|
| 1946 | Albania | 58%
|
| 1825 | Bolivia | 58%
|
| 1945 | North Korea | 58%
|
| 1956 | Pakistan | 58%
|
| 1910 | Portugal | 58%
|
| 1648 | Switzerland | 58%
|
| 1945 | Bosnia and Herzegovina | 55%
|
| 1948 | Israel | 55%
|
| 1947 | Romania | 55%
|
| 1917 | Estonia | 53%
|
| 1823 | Honduras | 53%
|
| 1946 | Hungary | 53%
|
| 1917 | Latvia | 53%
|
| 1918 | Lithuania | 53%
|
| 1945 | Macedonia | 53%
|
| 1581 | Netherlands | 53%
|
| 1819 | Panama | 53%
|
| 1945 | Serbia | 53%
|
| 1975 | Suriname | 53%
|
| 1946 | Bulgaria | 50%
|
| 1923 | Costa Rica | 50%
|
| 1945 | Croatia | 50%
|
| 1823 | Guatemala | 50%
|
| 1970 | Guyana | 50%
|
| 1859 | Haiti | 50%
|
| 1945 | Montenegro | 50%
|
| 301 | San Marino | 50%
|
| 1918 | Slovakia | 50%
|
| 1956 | South Sudan | 50%
|
| 1920 | Syria | 50%
|
| 1819 | Venezuela | 50%
|
| 1822 | Ecuador | 48%
|
| 1823 | El Salvador | 48%
|
| 1917 | Georgia | 48%
|
| 1924 | Mongolia | 48%
|
| 1823 | Nicaragua | 48%
|
| 1945 | Slovenia | 48%
|
| 1945 | Vietnam | 48%
|
| 1918 | Czech Republic | 45%
|
| 1945 | Indonesia | 45%
|
| 1917 | Kazakhstan | 45%
|
| 1975 | Laos | 45%
|
| 1974 | Malta | 45%
|
| 1940 | Moldova | 45%
|
| 1956 | Sudan | 45%
|
| 1973 | Afghanistan | 43%
|
| 1917 | Azerbaijan | 43%
|
| 1917 | Belarus | 43%
|
| 1970 | Cambodia | 43%
|
| 1948 | Myanmar | 43%
|
| 1899 | Philippines | 43%
|
| 1917 | Armenia | 40%
|
| 1975 | Ethiopia | 40%
|
| 2008 | Nepal | 40%
|
| 1920 | Tajikistan | 40%
|
| 1920 | Turkmenistan | 40%
|
| 1956 | Bangladesh | 38%
|
| 1960 | Democratic Republic of the Congo | 38%
|
| 1917 | Kyrgyzstan | 38%
|
| 1969 | Libya | 38%
|
| 1965 | Singapore | 38%
|
| 1957 | Tunisia | 38%
|
| 1960 | Cyprus | 35%
|
| 1987 | Fiji | 35%
|
| 2007 | Samoa | 35%
|
| 1960 | Somalia | 35%
|
| 1920 | Uzbekistan | 35%
|
| 1978 | Dominica | 33%
|
| 1865 | Dominican Republic | 33%
|
| 1947 | Federated States of Micronesia | 33%
|
| 1920 | Lebanon | 33%
|
| 1947 | Marshall Islands | 33%
|
| 1963 | Nigeria | 33%
|
| 1976 | Trinidad and Tobago | 33%
|
| 1962 | Yemen | 33%
|
| 1972 | Sri Lanka | 30%
|
| 1964 | Zambia | 30%
|
| 1980 | Zimbabwe | 30%
|
| 1966 | Botswana | 28%
|
| 1847 | Liberia | 28%
|
| 1897 | Madagascar | 28%
|
| 1922 | Togo | 28%
|
| 1910 | East Timor | 25%
|
| 1960 | Ghana | 25%
|
| 1910 | Guinea Bissau | 25%
|
| 1964 | Kenya | 25%
|
| 1968 | Nauru | 25%
|
| 1947 | Palau | 25%
|
| 1971 | Sierra Leone | 25%
|
| 1910 | Angola | 23%
|
| 1968 | Equatorial Guinea | 23%
|
| 1975 | Eritrea | 23%
|
| 1979 | Kiribati | 23%
|
| 1910 | Mozambique | 23%
|
| 1963 | Uganda | 23%
|
| 1979 | Central African Republic | 20%
|
| 1970 | Gambia | 18%
|
| 1962 | Rwanda | 18%
|
| 1910 | Sao tome and Principe | 18%
|
| 1966 | Burundi | 15%
|
| 1966 | Malawi | 15%
|
| 1968 | Maldives | 15%
|
| 1992 | Mauritius | 15%
|
| 1961 | Cameroon | 13%
|
| 1910 | Cape Verde | 10%
|
| 1976 | Seychelles | 10%
|