57 visiting now: 24 USA 
7 Singapore 
7 France 
5 Belgium 
4 UK 
2 China 
1 Taiwan 
1 Hong Kong 
1 India 
1 Brazil 
1 Poland 
1 South Africa 
1 Germany 
1 Argentina 
7 Singapore 7 France 5 Belgium 4 UK 2 China 1 Taiwan 1 Hong Kong 1 India 1 Brazil 1 Poland 1 South Africa 1 Germany 1 Argentina