83 visiting now: 41 Belgium 
16 China 
16 Singapore 
5 USA 
2 Russia 
1 Congo 
1 Germany 
1 Malaysia 
16 China 16 Singapore 5 USA 2 Russia 1 Congo 1 Germany 1 Malaysia 16 China 16 Singapore 5 USA 2 Russia 1 Congo 1 Germany 1 Malaysia