49 visiting now: 30 USA 
9 Singapore 
4 Canada 
2 China 
2 Poland 
2 Belgium 
1 UK 
1 Germany 
1 Iraq 
1 Portugal 
9 Singapore 4 Canada 2 China 2 Poland 2 Belgium 1 UK 1 Germany 1 Iraq 1 Portugal 9 Singapore 4 Canada 2 China 2 Poland 2 Belgium 1 UK 1 Germany 1 Iraq 1 Portugal