73 visiting now: 27 USA 
10 Singapore 
7 India 
5 China 
5 Ukraine 
3 France 
3 Australia 
3 Germany 
2 Hong Kong 
2 UK 
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1 Brazil 
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1 Japan 
1 Korea 
10 Singapore 7 India 5 China 5 Ukraine 3 France 3 Australia 3 Germany 2 Hong Kong 2 UK 2 Finland 2 Vietnam 2 Poland 1 Brazil 1 Canada 1 Japan 1 Korea