41 visiting now: 22 USA 
9 Singapore 
3 Canada 
3 Belgium 
2 China 
2 Russia 
1 Iran 
1 Australia 
1 Bangladesh 
1 UK 
9 Singapore 3 Canada 3 Belgium 2 China 2 Russia 1 Iran 1 Australia 1 Bangladesh 1 UK 9 Singapore 3 Canada 3 Belgium 2 China 2 Russia 1 Iran 1 Australia 1 Bangladesh 1 UK