49 visiting now: 25 USA 
10 Singapore 
5 China 
4 UK 
1 Hong Kong 
1 Australia 
1 Ireland 
1 Belgium 
1 Zimbabwe 
1 Mexico 
1 Russia 
1 France 
1 Germany 
10 Singapore 5 China 4 UK 1 Hong Kong 1 Australia 1 Ireland 1 Belgium 1 Zimbabwe 1 Mexico 1 Russia 1 France 1 Germany