47 visiting now: 33 USA 
8 Singapore 
4 Russia 
3 UK 
2 Australia 
2 Canada 
1 China 
1 Germany 
1 Korea 
8 Singapore 4 Russia 3 UK 2 Australia 2 Canada 1 China 1 Germany 1 Korea 8 Singapore 4 Russia 3 UK 2 Australia 2 Canada 1 China 1 Germany 1 Korea