75 visiting now: 34 USA 
15 Canada 
8 Singapore 
4 Brazil 
3 Czech Republic 
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1 Australia 
15 Canada 8 Singapore 4 Brazil 3 Czech Republic 3 UK 2 Germany 2 China 1 Saudi Arabia 1 Bangladesh 1 Venezuela 1 Belgium 1 Switzerland 1 India 1 Mexico 1 Ukraine 1 Poland 1 Australia