47 visiting now: 29 USA 
9 Canada 
3 UK 
2 Germany 
2 Singapore 
2 China 
1 Taiwan 
1 Finland 
9 Canada 3 UK 2 Germany 2 Singapore 2 China 1 Taiwan 1 Finland 9 Canada 3 UK 2 Germany 2 Singapore 2 China 1 Taiwan 1 Finland