| Years | Country | % Correct |
|---|---|---|
| 1949 - | China | 97%
|
| 1917 - 1991 | Russia | 97%
|
| 1976 - | Vietnam | 93%
|
| 1948 - | North Korea | 91%
|
| 1959 - | Cuba | 90%
|
| 1940 - 1991 | Estonia | 89%
|
| 1940 - 1991 | Latvia | 89%
|
| 1917 - 1991 | Kazakhstan | 88%
|
| 1940 - 1991 | Lithuania | 88%
|
| 1975 - | Cambodia | 87%
|
| 1943 - 1991 | Croatia | 87%
|
| 1975 - | Laos | 87%
|
| 1947- 1989 | Romania | 87%
|
| 1943 - 1992 | Serbia | 87%
|
| 1925 - 1991 | Turkmenistan | 87%
|
| 1919 - 1991 | Ukraine | 87%
|
| 1924 - 1991 | Uzbekistan | 87%
|
| 1945 - 1989 | Poland | 86%
|
| 1943 - 1991 | Slovenia | 86%
|
| 1943 - 1992 | Bosnia and Herzegovina | 85%
|
| 1948 - 1990 | Czechia | 85%
|
| 1949 - 1990 | Germany | 85%
|
| 1917 - 1991 | Kyrgyzstan | 85%
|
| 1948 - 1990 | Slovakia | 85%
|
| 1920 - 1991 | Belarus | 83%
|
| 1946 - 1990 | Bulgaria | 83%
|
| 1921 - 1991 | Georgia | 83%
|
| 1921 - 1991 | Tajikistan | 83%
|
| 1920 - 1991 | Armenia | 82%
|
| 1949 - 1989 | Hungary | 82%
|
| 1944 - 1991 | Moldova | 82%
|
| 1944 - 1992 | Albania | 81%
|
| 1920 - 1991 | Azerbaijan | 81%
|
| 1943 - 1992 | Montenegro | 80%
|
| 1943 - 1992 | Kosovo | 79%
|
| 1943 - 1991 | North Macedonia | 78%
|
| 1924 - 1992 | Mongolia | 76%
|
| 1978 - 1992 | Afghanistan | 74%
|
| 1975 - | Angola | 71%
|
| 1999 - | Venezuela | 69%
|
| 1974 - 1991 | Ethiopia | 68%
|
| 1958 - 2003 | Iraq | 68%
|
| 1969 - 1991 | Somalia | 68%
|
| 1969 - 2011 | Libya | 67%
|
| 1970 - 1992 | Republic of the Congo | 67%
|
| 1953 - 2011 | Egypt | 66%
|
| 1962 - 1988 | Myanmar | 66%
|
| 1975 - | Mozambique | 65%
|
| 1963 - | Syria | 63%
|
| 1996 - | Algeria | 62%
|
| 1976 - | India | 60%
|
| 1969 - 1985 | Sudan | 60%
|
| 1967 - 1990 | Yemen | 59%
|
| 1991 - | Eritrea | 57%
|
| 2015 - | Nepal | 57%
|
| 1974 - 1991 | Mali | 52%
|
| 1964 - 1988 | Tunisia | 52%
|
| 1975 - 1990 | Benin | 49%
|
| 1987 - | Nicaragua | 49%
|
| 1979 - 1983 | Grenada | 47%
|
| 1969 - 1985 | South Sudan | 45%
|
| 1964 | Tanzania | 45%
|
| 1981 - | Djibouti | 44%
|
| 1960 - 1966 | Ghana | 44%
|
| 1958 - 1984 | Guinea | 43%
|
| 1971 - | Bangladesh | 41%
|
| 1961 - 1978 | Mauritania | 40%
|
| 1973 - 1991 | Zambia | 40%
|
| 1978 - | Sri Lanka | 39%
|
| 1973 - | Guinea-Bissau | 38%
|
| 1975 - 1992 | Madagascar | 33%
|
| 1970 - 1979 | Equatorial Guinea | 29%
|
| 1976 - | Portugal | 28%
|
| 1980 - | Guyana | 25%
|
| 1975 - 1992 | Cape Verde | 21%
|
| 1977 - 1991 | Seychelles | 21%
|