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|
| Country |
Participants |
| United States | 23 |
| United Kingdom | 19 |
| Germany | 12 |
| Belgium | 7 |
| Norway | 7 |
| France | 4 |
| Switzerland | 3 |
| Netherlands | 2 |
| Canada | 1 |
| Denmark | 1 |
| Iceland | 1 |
| Japan | 1 |
| Poland | 1 |
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