60 visiting now: 29 USA 
14 China 
7 Singapore 
4 France 
2 Australia 
2 UK 
1 Finland 
1 Germany 
1 Brazil 
14 China 7 Singapore 4 France 2 Australia 2 UK 1 Finland 1 Germany 1 Brazil 14 China 7 Singapore 4 France 2 Australia 2 UK 1 Finland 1 Germany 1 Brazil