56 visiting now: 32 USA 
11 China 
8 Singapore 
3 India 
1 Australia 
1 Canada 
1 UK 
1 Finland 
1 Germany 
11 China 8 Singapore 3 India 1 Australia 1 Canada 1 UK 1 Finland 1 Germany 11 China 8 Singapore 3 India 1 Australia 1 Canada 1 UK 1 Finland 1 Germany