                                                                                                          
                           1790  1875                                                                                                                                                                                                                                                                                                                               85                                                
       1889  1969            80                  7  25                       1952                                                                                                  16                                                                                                      14       80               200        1969  4    
     
        6  29                                            54      30       2600                                  14           2000       1939                                                                                     14                                                                                   16                        26         15             63                                                                                                 50                                          206    112                  
        
         1971  200                     16  5                                                                                                       