48 visiting now: 33 USA 
9 Singapore 
4 UK 
2 Russia 
2 Finland 
2 Australia 
1 China 
1 Germany 
1 India 
1 Japan 
1 Canada 
9 Singapore 4 UK 2 Russia 2 Finland 2 Australia 1 China 1 Germany 1 India 1 Japan 1 Canada