43 visiting now: 28 USA 
8 Singapore 
4 UK 
2 Brazil 
2 France 
1 Australia 
1 Germany 
1 Belgium 
1 Mexico 
1 China 
1 Costa Rica 
8 Singapore 4 UK 2 Brazil 2 France 1 Australia 1 Germany 1 Belgium 1 Mexico 1 China 1 Costa Rica