156 visiting now: 144 USA 
8 Singapore 
2 Belgium 
1 India 
1 Japan 
1 Korea 
1 China 
1 Germany 
1 Hong Kong 
8 Singapore 2 Belgium 1 India 1 Japan 1 Korea 1 China 1 Germany 1 Hong Kong 8 Singapore 2 Belgium 1 India 1 Japan 1 Korea 1 China 1 Germany 1 Hong Kong