38 visiting now: 22 USA 
8 Canada 
3 China 
2 UK 
1 Poland 
1 Russia 
1 Singapore 
1 Finland 
1 Germany 
8 Canada 3 China 2 UK 1 Poland 1 Russia 1 Singapore 1 Finland 1 Germany 8 Canada 3 China 2 UK 1 Poland 1 Russia 1 Singapore 1 Finland 1 Germany