39 visiting now: 17 USA 
8 Singapore 
6 China 
3 Canada 
1 UK 
1 Germany 
1 Hong Kong 
1 Ireland 
1 Australia 
8 Singapore 6 China 3 Canada 1 UK 1 Germany 1 Hong Kong 1 Ireland 1 Australia 8 Singapore 6 China 3 Canada 1 UK 1 Germany 1 Hong Kong 1 Ireland 1 Australia