43 visiting now: 25 USA 
8 Singapore 
4 Canada 
2 Germany 
2 Brazil 
2 China 
1 Belgium 
1 India 
1 UK 
1 Ethiopia 
8 Singapore 4 Canada 2 Germany 2 Brazil 2 China 1 Belgium 1 India 1 UK 1 Ethiopia 8 Singapore 4 Canada 2 Germany 2 Brazil 2 China 1 Belgium 1 India 1 UK 1 Ethiopia