55 visiting now: 27 USA 
8 Singapore 
7 China 
3 UK 
3 India 
3 Australia 
1 Germany 
1 Ireland 
1 Brazil 
1 Bulgaria 
8 Singapore 7 China 3 UK 3 India 3 Australia 1 Germany 1 Ireland 1 Brazil 1 Bulgaria 8 Singapore 7 China 3 UK 3 India 3 Australia 1 Germany 1 Ireland 1 Brazil 1 Bulgaria