46 visiting now: 28 USA 
9 Singapore 
5 UK 
3 Belgium 
2 France 
2 Brazil 
1 China 
1 Hong Kong 
1 Tunisia 
9 Singapore 5 UK 3 Belgium 2 France 2 Brazil 1 China 1 Hong Kong 1 Tunisia 9 Singapore 5 UK 3 Belgium 2 France 2 Brazil 1 China 1 Hong Kong 1 Tunisia