40 visiting now: 20 Belgium 
6 USA 
4 China 
2 Germany 
2 Russia 
1 Japan 
1 Azerbaijan 
1 Hong Kong 
1 Thailand 
1 Brazil 
1 Ireland 
6 USA 4 China 2 Germany 2 Russia 1 Japan 1 Azerbaijan 1 Hong Kong 1 Thailand 1 Brazil 1 Ireland