38 visiting now: 23 USA 
9 Singapore 
2 Belgium 
1 Iran 
1 Poland 
1 Canada 
1 UK 
1 China 
1 France 
9 Singapore 2 Belgium 1 Iran 1 Poland 1 Canada 1 UK 1 China 1 France 9 Singapore 2 Belgium 1 Iran 1 Poland 1 Canada 1 UK 1 China 1 France