42 visiting now: 24 USA 
6 Singapore 
4 China 
2 Canada 
2 Belgium 
1 Morocco 
1 Brazil 
1 UK 
1 Czech Republic 
1 Algeria 
1 Hong Kong 
6 Singapore 4 China 2 Canada 2 Belgium 1 Morocco 1 Brazil 1 UK 1 Czech Republic 1 Algeria 1 Hong Kong