73 visiting now: 34 USA 
11 Belgium 
6 Singapore 
6 Brazil 
4 China 
3 Argentina 
2 Poland 
2 Canada 
2 Vietnam 
1 Finland 
1 Australia 
1 Russia 
1 France 
1 India 
1 UK 
1 Italy 
1 Japan 
11 Belgium 6 Singapore 6 Brazil 4 China 3 Argentina 2 Poland 2 Canada 2 Vietnam 1 Finland 1 Australia 1 Russia 1 France 1 India 1 UK 1 Italy 1 Japan