134 visiting now: 65 Belgium 
33 China 
16 USA 
4 India 
3 Latvia 
3 Singapore 
3 Canada 
2 Netherlands 
2 Russia 
1 Switzerland 
1 UK 
1 Pakistan 
33 China 16 USA 4 India 3 Latvia 3 Singapore 3 Canada 2 Netherlands 2 Russia 1 Switzerland 1 UK 1 Pakistan