70 visiting now: 32 USA 
9 Belgium 
8 Singapore 
6 UK 
5 Czech Republic 
4 Canada 
2 Netherlands 
2 Germany 
2 China 
1 Iran 
1 Ecuador 
1 Argentina 
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1 Hong Kong 
9 Belgium 8 Singapore 6 UK 5 Czech Republic 4 Canada 2 Netherlands 2 Germany 2 China 1 Iran 1 Ecuador 1 Argentina 1 France 1 Taiwan 1 Hong Kong