29 visiting now: 12 USA 
10 Singapore 
5 Canada 
2 UK 
2 Belgium 
1 Germany 
1 Iran 
1 Russia 
10 Singapore 5 Canada 2 UK 2 Belgium 1 Germany 1 Iran 1 Russia 10 Singapore 5 Canada 2 UK 2 Belgium 1 Germany 1 Iran 1 Russia