45 visiting now: 28 USA 
9 Singapore 
4 Canada 
3 China 
2 UK 
1 Germany 
1 Hong Kong 
1 Australia 
9 Singapore 4 Canada 3 China 2 UK 1 Germany 1 Hong Kong 1 Australia 9 Singapore 4 Canada 3 China 2 UK 1 Germany 1 Hong Kong 1 Australia