32 visiting now: 15 USA 
12 Singapore 
3 France 
2 India 
2 UK 
1 Belgium 
1 Brazil 
1 China 
12 Singapore 3 France 2 India 2 UK 1 Belgium 1 Brazil 1 China 12 Singapore 3 France 2 India 2 UK 1 Belgium 1 Brazil 1 China