45 visiting now: 30 USA 
4 UK 
3 Singapore 
3 Brazil 
2 Australia 
2 Belgium 
2 Poland 
2 Canada 
1 China 
1 Taiwan 
1 India 
1 Israel 
1 Russia 
4 UK 3 Singapore 3 Brazil 2 Australia 2 Belgium 2 Poland 2 Canada 1 China 1 Taiwan 1 India 1 Israel 1 Russia