60 visiting now: 24 USA 
9 Singapore 
8 Belgium 
6 UK 
4 France 
2 Poland 
1 India 
1 Chile 
1 China 
1 Saudi Arabia 
1 Finland 
1 Australia 
1 Taiwan 
1 Germany 
1 Brazil 
9 Singapore 8 Belgium 6 UK 4 France 2 Poland 1 India 1 Chile 1 China 1 Saudi Arabia 1 Finland 1 Australia 1 Taiwan 1 Germany 1 Brazil