39 visiting now: 23 USA 
6 Canada 
5 UK 
2 Singapore 
1 Germany 
1 Hong Kong 
1 Korea 
1 China 
6 Canada 5 UK 2 Singapore 1 Germany 1 Hong Kong 1 Korea 1 China 6 Canada 5 UK 2 Singapore 1 Germany 1 Hong Kong 1 Korea 1 China