66 visiting now: 32 USA 
8 Singapore 
6 India 
5 China 
4 Australia 
4 Canada 
3 UK 
2 Ukraine 
2 Russia 
2 Germany 
1 Korea 
1 New Zealand 
1 Finland 
8 Singapore 6 India 5 China 4 Australia 4 Canada 3 UK 2 Ukraine 2 Russia 2 Germany 1 Korea 1 New Zealand 1 Finland