46 visiting now: 34 USA 
6 Singapore 
4 France 
4 Brazil 
3 Belgium 
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1 China 
1 Italy 
1 UK 
6 Singapore 4 France 4 Brazil 3 Belgium 2 Vietnam 1 China 1 Italy 1 UK 6 Singapore 4 France 4 Brazil 3 Belgium 2 Vietnam 1 China 1 Italy 1 UK