51 visiting now: 27 USA 
9 Singapore 
6 China 
4 UK 
1 Germany 
1 India 
1 Canada 
1 Ukraine 
1 Finland 
9 Singapore 6 China 4 UK 1 Germany 1 India 1 Canada 1 Ukraine 1 Finland 9 Singapore 6 China 4 UK 1 Germany 1 India 1 Canada 1 Ukraine 1 Finland