52 visiting now: 25 USA 
10 China 
8 Singapore 
4 India 
3 Canada 
2 Australia 
1 UK 
1 Finland 
10 China 8 Singapore 4 India 3 Canada 2 Australia 1 UK 1 Finland 10 China 8 Singapore 4 India 3 Canada 2 Australia 1 UK 1 Finland