43 visiting now: 27 USA 
9 Singapore 
6 UK 
2 Belgium 
2 Brazil 
2 France 
1 China 
1 Russia 
9 Singapore 6 UK 2 Belgium 2 Brazil 2 France 1 China 1 Russia 9 Singapore 6 UK 2 Belgium 2 Brazil 2 France 1 China 1 Russia