46 visiting now: 23 USA 
7 Singapore 
6 Belgium 
4 France 
3 UK 
2 Canada 
2 China 
1 Russia 
1 Germany 
1 Iran 
1 Japan 
7 Singapore 6 Belgium 4 France 3 UK 2 Canada 2 China 1 Russia 1 Germany 1 Iran 1 Japan