57 visiting now: 38 USA 
11 Canada 
5 Singapore 
2 UK 
1 Australia 
1 China 
1 Germany 
1 Russia 
11 Canada 5 Singapore 2 UK 1 Australia 1 China 1 Germany 1 Russia 11 Canada 5 Singapore 2 UK 1 Australia 1 China 1 Germany 1 Russia