50 visiting now: 38 USA 
4 China 
3 Canada 
2 Australia 
2 UK 
2 Ukraine 
1 Finland 
1 India 
1 Singapore 
4 China 3 Canada 2 Australia 2 UK 2 Ukraine 1 Finland 1 India 1 Singapore 4 China 3 Canada 2 Australia 2 UK 2 Ukraine 1 Finland 1 India 1 Singapore