| Joined | Country | % Correct |
|---|---|---|
| 2006 | Bolivia | 100%
|
| 2004 | Cuba | 94%
|
| 2004 | Venezuela | 94%
|
| 2008 | Dominica | 78%
|
| 2009 | Ecuador | 78%
|
| 2009 | Antigua and Barbuda | 72%
|
| 2007 | Nicaragua | 72%
|
| 2014 | Saint Kitts and Nevis | 72%
|
| 2013 | Saint Lucia | 72%
|
| 2009 | Saint Vincent and the Grenadines | 67%
|
| 2014 | Grenada | 61%
|