37 visiting now: 13 USA 
7 Germany 
5 France 
5 Belgium 
5 Canada 
2 UK 
1 Hong Kong 
1 South Africa 
1 China 
7 Germany 5 France 5 Belgium 5 Canada 2 UK 1 Hong Kong 1 South Africa 1 China 7 Germany 5 France 5 Belgium 5 Canada 2 UK 1 Hong Kong 1 South Africa 1 China