38 visiting now: 21 USA 
9 Canada 
4 China 
1 UK 
1 Germany 
1 Russia 
1 Singapore 
1 Australia 
9 Canada 4 China 1 UK 1 Germany 1 Russia 1 Singapore 1 Australia 9 Canada 4 China 1 UK 1 Germany 1 Russia 1 Singapore 1 Australia