30 visiting now: 19 USA 
9 Singapore 
3 UK 
2 France 
1 Brazil 
1 China 
1 Colombia 
1 Germany 
1 New Zealand 
9 Singapore 3 UK 2 France 1 Brazil 1 China 1 Colombia 1 Germany 1 New Zealand 9 Singapore 3 UK 2 France 1 Brazil 1 China 1 Colombia 1 Germany 1 New Zealand