33 visiting now: 27 USA 
8 Singapore 
1 Korea 
1 Nigeria 
1 Senegal 
1 Australia 
1 Canada 
1 UK 
1 Germany 
8 Singapore 1 Korea 1 Nigeria 1 Senegal 1 Australia 1 Canada 1 UK 1 Germany 8 Singapore 1 Korea 1 Nigeria 1 Senegal 1 Australia 1 Canada 1 UK 1 Germany