64 visiting now: 34 USA 
10 Singapore 
8 France 
3 China 
2 Brazil 
2 UK 
1 Latvia 
1 Canada 
1 Russia 
1 Argentina 
1 Switzerland 
1 Germany 
1 Belgium 
1 India 
10 Singapore 8 France 3 China 2 Brazil 2 UK 1 Latvia 1 Canada 1 Russia 1 Argentina 1 Switzerland 1 Germany 1 Belgium 1 India