46 visiting now: 21 USA 
8 China 
8 Singapore 
5 Canada 
4 UK 
1 Korea 
1 Belgium 
1 Ukraine 
8 China 8 Singapore 5 Canada 4 UK 1 Korea 1 Belgium 1 Ukraine 8 China 8 Singapore 5 Canada 4 UK 1 Korea 1 Belgium 1 Ukraine