49 visiting now: 26 USA 
8 Singapore 
5 Canada 
5 China 
4 UK 
1 Germany 
1 Hong Kong 
1 Brazil 
1 Iran 
1 Europe 
8 Singapore 5 Canada 5 China 4 UK 1 Germany 1 Hong Kong 1 Brazil 1 Iran 1 Europe 8 Singapore 5 Canada 5 China 4 UK 1 Germany 1 Hong Kong 1 Brazil 1 Iran 1 Europe