71 visiting now: 32 USA 
18 China 
5 Singapore 
4 UK 
4 Netherlands 
2 Germany 
2 Brazil 
1 Switzerland 
1 India 
1 Argentina 
1 Indonesia 
18 China 5 Singapore 4 UK 4 Netherlands 2 Germany 2 Brazil 1 Switzerland 1 India 1 Argentina 1 Indonesia