69 visiting now: 32 USA 
8 Singapore 
6 China 
5 UK 
5 Canada 
3 Czech Republic 
3 Germany 
2 Brazil 
2 Latvia 
1 Cyprus 
1 Belarus 
1 South Africa 
1 Japan 
1 Venezuela 
1 Colombia 
1 Bangladesh 
8 Singapore 6 China 5 UK 5 Canada 3 Czech Republic 3 Germany 2 Brazil 2 Latvia 1 Cyprus 1 Belarus 1 South Africa 1 Japan 1 Venezuela 1 Colombia 1 Bangladesh