52 visiting now: 27 USA 
10 Singapore 
8 Belgium 
8 UK 
4 China 
2 Vietnam 
1 Brazil 
1 France 
1 Italy 
10 Singapore 8 Belgium 8 UK 4 China 2 Vietnam 1 Brazil 1 France 1 Italy 10 Singapore 8 Belgium 8 UK 4 China 2 Vietnam 1 Brazil 1 France 1 Italy