72 visiting now: 27 USA 
11 Canada 
9 Singapore 
7 Brazil 
4 Czech Republic 
3 China 
2 Germany 
2 India 
2 UK 
2 Belgium 
1 Argentina 
1 Hong Kong 
1 Chile 
1 Australia 
1 Turkey 
1 Bangladesh 
1 Japan 
1 Mexico 
1 Finland 
1 Saudi Arabia 
11 Canada 9 Singapore 7 Brazil 4 Czech Republic 3 China 2 Germany 2 India 2 UK 2 Belgium 1 Argentina 1 Hong Kong 1 Chile 1 Australia 1 Turkey 1 Bangladesh 1 Japan 1 Mexico 1 Finland 1 Saudi Arabia