40 visiting now: 26 USA 
6 Singapore 
5 Russia 
5 Canada 
2 UK 
1 Finland 
1 Ukraine 
1 France 
1 Germany 
1 Brazil 
1 China 
6 Singapore 5 Russia 5 Canada 2 UK 1 Finland 1 Ukraine 1 France 1 Germany 1 Brazil 1 China