44 visiting now: 19 China 
16 USA 
3 Taiwan 
2 Russia 
1 Germany 
1 Japan 
1 Brazil 
1 Peru 
16 USA 3 Taiwan 2 Russia 1 Germany 1 Japan 1 Brazil 1 Peru 16 USA 3 Taiwan 2 Russia 1 Germany 1 Japan 1 Brazil 1 Peru