88 visiting now: 65 Belgium 
8 USA 
6 Russia 
3 Singapore 
3 China 
1 Germany 
1 Vietnam 
1 South Africa 
8 USA 6 Russia 3 Singapore 3 China 1 Germany 1 Vietnam 1 South Africa 8 USA 6 Russia 3 Singapore 3 China 1 Germany 1 Vietnam 1 South Africa