40 visiting now: 31 USA 
5 Germany 
3 UK 
2 Iran 
2 Netherlands 
2 Canada 
1 Australia 
1 Belgium 
1 Hong Kong 
5 Germany 3 UK 2 Iran 2 Netherlands 2 Canada 1 Australia 1 Belgium 1 Hong Kong 5 Germany 3 UK 2 Iran 2 Netherlands 2 Canada 1 Australia 1 Belgium 1 Hong Kong