44 visiting now: 20 USA 
7 Singapore 
6 China 
4 Canada 
3 Germany 
2 Hong Kong 
2 Belgium 
1 Ireland 
1 UK 
7 Singapore 6 China 4 Canada 3 Germany 2 Hong Kong 2 Belgium 1 Ireland 1 UK 7 Singapore 6 China 4 Canada 3 Germany 2 Hong Kong 2 Belgium 1 Ireland 1 UK