39 visiting now: 31 USA 
3 UK 
2 Bangladesh 
2 Canada 
2 Singapore 
2 Germany 
1 Saudi Arabia 
1 China 
1 Trinidad and Tobago 
1 Hong Kong 
1 Australia 
1 Mexico 
3 UK 2 Bangladesh 2 Canada 2 Singapore 2 Germany 1 Saudi Arabia 1 China 1 Trinidad and Tobago 1 Hong Kong 1 Australia 1 Mexico