38 visiting now: 19 USA 
8 Singapore 
3 France 
2 Canada 
2 Belgium 
2 UK 
1 Iran 
1 Russia 
1 Brazil 
8 Singapore 3 France 2 Canada 2 Belgium 2 UK 1 Iran 1 Russia 1 Brazil 8 Singapore 3 France 2 Canada 2 Belgium 2 UK 1 Iran 1 Russia 1 Brazil