30 visiting now: 18 USA 
6 Canada 
3 UK 
2 Russia 
2 China 
2 Germany 
1 Singapore 
1 Finland 
6 Canada 3 UK 2 Russia 2 China 2 Germany 1 Singapore 1 Finland 6 Canada 3 UK 2 Russia 2 China 2 Germany 1 Singapore 1 Finland