54 visiting now: 38 USA 
8 China 
4 UK 
2 India 
2 Australia 
1 Turkey 
1 Finland 
1 Nigeria 
1 Poland 
1 Canada 
1 Singapore 
8 China 4 UK 2 India 2 Australia 1 Turkey 1 Finland 1 Nigeria 1 Poland 1 Canada 1 Singapore