                                              4        100                100         

1968        4x100       38"24 38.24      100       9"60             9"95   100    10         

      4x100   4    100         100     9"95   4        39"80     38"24             

          1973      100                       0-100                    30        30 -80                       80                                 

    100                30                       4x100            

4x100           30                                        30                 100                            30                 