47 visiting now: 19 USA 
11 China 
8 Singapore 
3 Canada 
2 Germany 
1 Hong Kong 
1 Russia 
1 Belgium 
1 UK 
11 China 8 Singapore 3 Canada 2 Germany 1 Hong Kong 1 Russia 1 Belgium 1 UK 11 China 8 Singapore 3 Canada 2 Germany 1 Hong Kong 1 Russia 1 Belgium 1 UK