42 visiting now: 26 USA 
10 Singapore 
5 Canada 
2 Brazil 
1 China 
1 Iran 
1 Belgium 
1 UK 
10 Singapore 5 Canada 2 Brazil 1 China 1 Iran 1 Belgium 1 UK 10 Singapore 5 Canada 2 Brazil 1 China 1 Iran 1 Belgium 1 UK