69 visiting now: 34 USA 
6 Brazil 
6 India 
6 China 
4 Netherlands 
3 Singapore 
2 Taiwan 
2 UK 
2 Bangladesh 
2 France 
1 Italy 
1 Germany 
6 Brazil 6 India 6 China 4 Netherlands 3 Singapore 2 Taiwan 2 UK 2 Bangladesh 2 France 1 Italy 1 Germany