| Date | Population | Country | % Correct |
|---|---|---|---|
| 1761 | 1423 mil | China | 100%
|
| 1855 | 1466 mil | India | 99%
|
| 1967 | 351 mil | United States | 99%
|
| 2012 | 213 mil | Brazil | 85%
|
| 1997 | 286 mil | Indonesia | 80%
|
| 2019 | 239 mil | Nigeria | 72%
|
| 2018 | 256 mil | Pakistan | 72%
|