40 visiting now: 25 USA 
9 Singapore 
3 UK 
2 China 
1 Germany 
1 Zimbabwe 
1 Hong Kong 
1 New Zealand 
1 Australia 
9 Singapore 3 UK 2 China 1 Germany 1 Zimbabwe 1 Hong Kong 1 New Zealand 1 Australia 9 Singapore 3 UK 2 China 1 Germany 1 Zimbabwe 1 Hong Kong 1 New Zealand 1 Australia