68 visiting now: 33 USA 
9 Singapore 
7 India 
6 Belgium 
4 China 
4 Australia 
3 Canada 
3 UK 
1 Vietnam 
1 Ireland 
1 Russia 
1 Finland 
1 Germany 
9 Singapore 7 India 6 Belgium 4 China 4 Australia 3 Canada 3 UK 1 Vietnam 1 Ireland 1 Russia 1 Finland 1 Germany