61 visiting now: 27 USA 
14 Singapore 
5 China 
4 Canada 
3 UK 
3 Saudi Arabia 
2 Belgium 
1 Mexico 
1 Egypt 
1 Finland 
1 Senegal 
1 Germany 
1 India 
1 Sweden 
1 Japan 
14 Singapore 5 China 4 Canada 3 UK 3 Saudi Arabia 2 Belgium 1 Mexico 1 Egypt 1 Finland 1 Senegal 1 Germany 1 India 1 Sweden 1 Japan