55 visiting now: 37 USA 
8 Singapore 
6 China 
2 Russia 
2 Canada 
2 UK 
1 Finland 
1 Germany 
1 Australia 
8 Singapore 6 China 2 Russia 2 Canada 2 UK 1 Finland 1 Germany 1 Australia 8 Singapore 6 China 2 Russia 2 Canada 2 UK 1 Finland 1 Germany 1 Australia