57 visiting now: 37 USA 
11 Canada 
6 Singapore 
3 Russia 
1 New Zealand 
1 China 
1 UK 
1 Finland 
1 Germany 
11 Canada 6 Singapore 3 Russia 1 New Zealand 1 China 1 UK 1 Finland 1 Germany 11 Canada 6 Singapore 3 Russia 1 New Zealand 1 China 1 UK 1 Finland 1 Germany