40 visiting now: 21 USA 
9 Singapore 
2 UK 
2 China 
1 Indonesia 
1 Iran 
1 Brazil 
1 Lebanon 
1 Canada 
1 Mexico 
1 Saudi Arabia 
1 France 
9 Singapore 2 UK 2 China 1 Indonesia 1 Iran 1 Brazil 1 Lebanon 1 Canada 1 Mexico 1 Saudi Arabia 1 France