| Date | Population | Country | % Correct |
|---|---|---|---|
| 1973 | 45 m | Argentina | 96%
|
| 2019 | 26 m | Australia | 96%
|
| 2023 | 27 m | Niger | 96%
|
| 1998 | 34 m | Peru | 96%
|
| 1989 | 47 m | Algeria | 92%
|
| 1982 | 39 m | Canada | 92%
|
| 1991 | 39 m | Morocco | 92%
|
| 1951 | 38 m | Poland | 92%
|
| 2006 | 34 m | Saudi Arabia | 92%
|
| 2002 | 36 m | Uzbekistan | 92%
|
| 2002 | 28 m | Venezuela | 92%
|
| 2015 | 38 m | Angola | 88%
|
| 1937 | 48 m | Spain | 88%
|
| 1901 | 38 m | Ukraine | 88%
|
| 2012 | 34 m | Ghana | 85%
|
| 2003 | 46 m | Iraq | 85%
|
| 2004 | 29 m | Nepal | 85%
|
| 2019 | 29 m | Cameroon | 81%
|
| 2004 | 35 m | Malaysia | 81%
|
| 2006 | 43 m | Afghanistan | 77%
|
| 2017 | 32 m | Madagascar | 77%
|
| 2011 | 34 m | Mozambique | 77%
|
| 2014 | 26 m | North Korea | 77%
|
| 2015 | 32 m | Ivory Coast | 73%
|
| 2013 | 41 m | Yemen | 73%
|