| 2000 | 2012 | |
|---|---|---|
| Argentina | 14.0 | 13.0 |
| United States of America | 13.0 | 12.0 |
| Mexico | 18.0 | 21.0 |
| Cuba | 16.0 | 11.0 |
| Bahamas | 11.0 | 11.0 |
| El Salvador | 29.0 | 35.0 |
| Trinidad and Tobago | 10.0 | 18.0 |
| Nicaragua | 16.0 | 17.0 |
| Belize | 25.0 | 23.0 |
| Barbados | 11.0 | 8.0 |
| Honduras | 16.0 | 22.0 |
| Venezuela (Bolivarian Republic of) | 27.0 | 34.0 |
| Brazil | 18.0 | 21.0 |
| Guatemala | 21.0 | 24.0 |
| Panama | 16.0 | 22.0 |
| Costa Rica | 18.0 | 18.0 |
| Colombia | 38.0 | 27.0 |
| Dominican Republic | 15.0 | 19.0 |
| Jamaica | 13.0 | 14.0 |
| Canada | 12.0 | 11.0 |
| Chile | 18.0 | 15.0 |
| Uruguay | 14.0 | 13.0 |
| Ecuador | 19.0 | 23.0 |
| Haiti | 9.0 | 12.0 |
| Guyana | 20.0 | 20.0 |
| Suriname | 16.0 | 21.0 |
| Paraguay | 14.0 | 19.0 |
| Peru | 12.0 | 15.0 |
| Bolivia (Plurinational State of) | 15.0 | 18.0 |