44 visiting now: 29 USA 
8 Singapore 
4 France 
3 Canada 
2 China 
2 Australia 
1 Iran 
1 Belgium 
1 UK 
8 Singapore 4 France 3 Canada 2 China 2 Australia 1 Iran 1 Belgium 1 UK 8 Singapore 4 France 3 Canada 2 China 2 Australia 1 Iran 1 Belgium 1 UK