40 visiting now: 21 USA 
7 Singapore 
3 UK 
2 Australia 
2 China 
1 Vietnam 
1 Poland 
1 Canada 
1 Slovakia 
1 Hong Kong 
1 India 
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7 Singapore 3 UK 2 Australia 2 China 1 Vietnam 1 Poland 1 Canada 1 Slovakia 1 Hong Kong 1 India 1 Argentina