| Date | Population | Country | % Correct |
|---|---|---|---|
| 1700 | 1,379 mil | China | 99%
|
| 1955 | 325 mil | United States | 99%
|
| 1750 | 1,331 mil | India | 97%
|
| 1993 | 207 mil | Brazil | 91%
|
| 1984 | 261 mil | Indonesia | 85%
|
| 2009 | 187 mil | Nigeria | 78%
|
| 2013 | 161 mil | Bangladesh | 76%
|
| 2002 | 195 mil | Pakistan | 76%
|