64 visiting now: 36 USA 
9 China 
8 Singapore 
4 France 
3 UK 
2 Ukraine 
1 Finland 
1 Germany 
1 Australia 
1 Japan 
1 Canada 
1 Netherlands 
9 China 8 Singapore 4 France 3 UK 2 Ukraine 1 Finland 1 Germany 1 Australia 1 Japan 1 Canada 1 Netherlands