43 visiting now: 28 USA 
6 Canada 
4 Singapore 
1 Finland 
1 Hong Kong 
1 Australia 
1 UK 
1 China 
6 Canada 4 Singapore 1 Finland 1 Hong Kong 1 Australia 1 UK 1 China 6 Canada 4 Singapore 1 Finland 1 Hong Kong 1 Australia 1 UK 1 China