49 visiting now: 23 USA 
9 China 
8 Singapore 
4 Canada 
3 UK 
2 Hong Kong 
1 Korea 
1 Germany 
9 China 8 Singapore 4 Canada 3 UK 2 Hong Kong 1 Korea 1 Germany 9 China 8 Singapore 4 Canada 3 UK 2 Hong Kong 1 Korea 1 Germany