170 visiting now: 154 USA 
8 Singapore 
2 China 
2 Hong Kong 
2 Belgium 
1 Korea 
1 Germany 
1 India 
1 Japan 
8 Singapore 2 China 2 Hong Kong 2 Belgium 1 Korea 1 Germany 1 India 1 Japan 8 Singapore 2 China 2 Hong Kong 2 Belgium 1 Korea 1 Germany 1 India 1 Japan