37 visiting now: 21 USA 
8 Singapore 
4 Belgium 
2 France 
2 UK 
2 Brazil 
1 Russia 
1 Barbados 
1 Bolivia 
8 Singapore 4 Belgium 2 France 2 UK 2 Brazil 1 Russia 1 Barbados 1 Bolivia 8 Singapore 4 Belgium 2 France 2 UK 2 Brazil 1 Russia 1 Barbados 1 Bolivia