50 visiting now: 29 USA 
9 Singapore 
3 Canada 
2 Brazil 
2 Germany 
1 UK 
1 Italy 
1 Colombia 
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1 China 
9 Singapore 3 Canada 2 Brazil 2 Germany 1 UK 1 Italy 1 Colombia 1 Uruguay 1 Peru 1 Congo 1 Belgium 1 Philippines 1 Ethiopia 1 Russia 1 Hong Kong 1 China