41 visiting now: 22 USA 
7 Singapore 
4 Belgium 
3 France 
2 UK 
2 Canada 
2 China 
1 Brazil 
7 Singapore 4 Belgium 3 France 2 UK 2 Canada 2 China 1 Brazil 7 Singapore 4 Belgium 3 France 2 UK 2 Canada 2 China 1 Brazil