37 visiting now: 14 Canada 
12 USA 
7 Singapore 
3 China 
2 Australia 
2 UK 
1 Hong Kong 
1 Russia 
12 USA 7 Singapore 3 China 2 Australia 2 UK 1 Hong Kong 1 Russia 12 USA 7 Singapore 3 China 2 Australia 2 UK 1 Hong Kong 1 Russia