39 visiting now: 31 USA 
5 Germany 
3 Canada 
3 France 
2 Russia 
2 Singapore 
1 New Zealand 
1 Panama 
5 Germany 3 Canada 3 France 2 Russia 2 Singapore 1 New Zealand 1 Panama 5 Germany 3 Canada 3 France 2 Russia 2 Singapore 1 New Zealand 1 Panama