113 visiting now: 65 Belgium 
29 China 
7 USA 
3 Singapore 
2 India 
2 UK 
1 France 
1 Taiwan 
1 Brazil 
1 Netherlands 
1 Germany 
29 China 7 USA 3 Singapore 2 India 2 UK 1 France 1 Taiwan 1 Brazil 1 Netherlands 1 Germany