47 visiting now: 29 USA 
9 Singapore 
3 Canada 
3 UK 
1 China 
1 Ukraine 
1 Finland 
1 Germany 
1 Italy 
9 Singapore 3 Canada 3 UK 1 China 1 Ukraine 1 Finland 1 Germany 1 Italy 9 Singapore 3 Canada 3 UK 1 China 1 Ukraine 1 Finland 1 Germany 1 Italy