| Accession Date | Country | % Correct |
|---|---|---|
| October 7th, 2008 | Canada | 96%
|
| May 25th, 2007 | United States | 96%
|
| July 2nd, 2008 | France | 93%
|
| November 2nd, 2010 | Germany | 93%
|
| April 3rd, 2012 | India | 93%
|
| June 1st, 2007 | Mexico | 93%
|
| January 21st, 2010 | Sweden | 93%
|
| March 18th, 2009 | United Kingdom | 93%
|
| August 4th, 2008 | Australia | 89%
|
| February 9th, 2010 | Finland | 89%
|
| August 4th, 2008 | Japan | 89%
|
| February 1st, 2011 | Russia | 89%
|
| October 27th, 2008 | Spain | 89%
|
| November 22nd, 2011 | Belgium | 86%
|
| January 21st, 2010 | Denmark | 86%
|
| May 14th, 2012 | Estonia | 86%
|
| August 21st, 2014 | Indonesia | 86%
|
| September 30th, 2010 | Ireland | 86%
|
| February 9th, 2010 | Norway | 86%
|
| August 18th, 2009 | Portugal | 86%
|
| October 30th, 2012 | Slovakia | 86%
|
| June 7th, 2010 | South Africa | 86%
|
| January 24th, 2012 | South Korea | 86%
|
| April 19th, 2012 | Ukraine | 86%
|
| April 1st, 2013 | China | 82%
|
| September 25th, 2012 | Croatia | 82%
|
| October 7th, 2009 | Czech Republic | 82%
|
| April 22nd, 2013 | Hungary | 82%
|
| October 10th, 2013 | Iceland | 82%
|
| October 29th, 2008 | Italy | 82%
|
| March 18th, 2009 | Netherlands | 82%
|
| December 1st, 2008 | New Zealand | 82%
|
| July 23rd, 2014 | Serbia | 82%
|
| January 29th, 2014 | Slovenia | 82%
|
| March 21st, 2012 | Thailand | 82%
|
| September 25th, 2014 | Argentina | 79%
|
| April 3rd, 2012 | Austria | 79%
|
| November 14th, 2015 | Belarus | 79%
|
| September 30th, 2010 | Brazil | 79%
|
| March 6th, 2013 | Bulgaria | 79%
|
| May 14th, 2012 | Latvia | 79%
|
| January 30th, 2013 | Lithuania | 79%
|
| August 27th, 2013 | Malaysia | 79%
|
| August 14th, 2013 | Peru | 79%
|
| December 8th, 2010 | Romania | 79%
|
| September 25th, 2012 | Andorra | 75%
|
| January 12th, 2012 | Chile | 75%
|
| September 3rd, 2013 | Colombia | 75%
|
| April 3rd, 2012 | Greece | 75%
|
| February 21st, 2012 | Poland | 75%
|
| August 18th, 2009 | Switzerland | 75%
|
| October 3rd, 2014 | United Arab Emirates | 75%
|
| November 10th, 2016 | Albania | 71%
|
| October 21st, 2014 | Mongolia | 71%
|
| November 10th, 2016 | Montenegro | 71%
|
| March 18th, 2013 | Nepal | 71%
|
| October 8th, 2015 | North Macedonia | 71%
|
| June 1st, 2012 | San Marino | 71%
|
| August 18th, 2009 | Taiwan | 71%
|
| November 28th, 2015 | Uruguay | 71%
|
| March 31st, 2014 | Cambodia | 68%
|
| September 12th, 2013 | Ecuador | 68%
|
| December 2nd, 2009 | Singapore | 68%
|
| May 16th, 2014 | Turkey | 68%
|
| December 13th, 2020 | Vietnam | 68%
|
| January 21st, 2015 | Bangladesh | 64%
|
| April 25th, 2017 | Guatemala | 64%
|
| April 2nd, 2012 | Israel | 64%
|
| July 14th, 2015 | Laos | 64%
|
| November 12th, 2015 | Bolivia | 61%
|
| August 16th, 2011 | Iraq | 61%
|
| September 15th, 2015 | Kenya | 61%
|
| October 29th, 2015 | Kosovo | 61%
|
| April 3rd, 2012 | Qatar | 61%
|
| October 23th, 2014 | Bhutan | 57%
|
| November 27th, 2012 | Botswana | 57%
|
| July 8th, 2011 | Monaco | 57%
|
| March 21st, 2016 | Sri Lanka | 57%
|
| September 7th, 2016 | Tunisia | 57%
|
| September 25th, 2013 | Eswatini | 54%
|
| December 21st, 2018 | Dominican Republic | 50%
|
| September 16th, 2015 | Philippines | 50%
|
| October 8th, 2015 | Uganda | 50%
|
| November 22nd, 2015 | Jordan | 46%
|
| May 5th, 2016 | Kyrgyzstan | 46%
|
| May 6th, 2015 | Madagascar | 43%
|
| June 4th, 2015 | East Timor | 39%
|
| April 22nd, 2013 | Lesotho | 39%
|
| March 18th, 2013 | Tanzania | 39%
|