| Prefix | Country | % Correct |
|---|---|---|
| D | Germany | 100%
|
| JA | Japan | 100%
|
| G | United Kingdom | 100%
|
| N | United States | 100%
|
| C | Canada | 80%
|
| F | France | 80%
|
| EI | Ireland | 80%
|
| A6 | United Arab Emirates | 80%
|
| B | China/Taiwan | 60%
|
| ET | Ethiopia | 60%
|
| OE | Austria | 40%
|
| 9V | Singapore | 20%
|
| ZS | South Africa | 20%
|
| HL | South Korea | 20%
|
| 5Y | Kenya | 0%
|