43 visiting now: 30 USA 
8 Singapore 
3 Canada 
2 Brazil 
2 UK 
1 Russia 
1 Belgium 
1 Iran 
1 Iraq 
8 Singapore 3 Canada 2 Brazil 2 UK 1 Russia 1 Belgium 1 Iran 1 Iraq 8 Singapore 3 Canada 2 Brazil 2 UK 1 Russia 1 Belgium 1 Iran 1 Iraq