60 visiting now: 22 USA 
20 China 
4 India 
3 UK 
2 Singapore 
2 Netherlands 
2 Germany 
1 Israel 
1 Canada 
1 Bangladesh 
1 Romania 
1 Brazil 
20 China 4 India 3 UK 2 Singapore 2 Netherlands 2 Germany 1 Israel 1 Canada 1 Bangladesh 1 Romania 1 Brazil