59 visiting now: 49 USA 
4 Singapore 
2 China 
2 UK 
2 Hong Kong 
1 Korea 
1 Germany 
1 Japan 
4 Singapore 2 China 2 UK 2 Hong Kong 1 Korea 1 Germany 1 Japan 4 Singapore 2 China 2 UK 2 Hong Kong 1 Korea 1 Germany 1 Japan