90 visiting now: 38 China 
26 USA 
10 Singapore 
4 Netherlands 
4 Brazil 
3 UK 
1 Bangladesh 
1 Israel 
1 India 
1 Switzerland 
1 Nigeria 
26 USA 10 Singapore 4 Netherlands 4 Brazil 3 UK 1 Bangladesh 1 Israel 1 India 1 Switzerland 1 Nigeria