52 visiting now: 27 USA 
8 Singapore 
4 UK 
3 France 
3 India 
3 Canada 
2 Australia 
2 China 
1 Russia 
1 Finland 
1 Germany 
1 Iran 
8 Singapore 4 UK 3 France 3 India 3 Canada 2 Australia 2 China 1 Russia 1 Finland 1 Germany 1 Iran