53 visiting now: 31 USA 
5 Australia 
4 Singapore 
3 Ukraine 
3 Brazil 
3 Canada 
2 Hong Kong 
2 China 
1 Colombia 
1 UK 
1 Germany 
1 Iran 
1 Russia 
5 Australia 4 Singapore 3 Ukraine 3 Brazil 3 Canada 2 Hong Kong 2 China 1 Colombia 1 UK 1 Germany 1 Iran 1 Russia