66 visiting now: 52 USA 
9 Singapore 
5 UK 
1 Taiwan 
1 Australia 
1 China 
1 India 
1 Russia 
9 Singapore 5 UK 1 Taiwan 1 Australia 1 China 1 India 1 Russia 9 Singapore 5 UK 1 Taiwan 1 Australia 1 China 1 India 1 Russia