45 visiting now: 29 USA 
6 Singapore 
4 Canada 
2 Brazil 
2 UK 
1 Taiwan 
1 China 
1 Germany 
1 India 
1 Australia 
1 Italy 
6 Singapore 4 Canada 2 Brazil 2 UK 1 Taiwan 1 China 1 Germany 1 India 1 Australia 1 Italy