80 visiting now: 58 Belgium 
9 USA 
5 China 
2 India 
2 Russia 
2 France 
1 Poland 
1 Germany 
9 USA 5 China 2 India 2 Russia 2 France 1 Poland 1 Germany 9 USA 5 China 2 India 2 Russia 2 France 1 Poland 1 Germany