********* PDF uncertainty analysis *********
*                                          *
*      Central value   3362429.384 fb      *
*                                          *
*        Absolute PDF uncertainties        *
*      Symmetric +/-    124093.507 fb      *
*      +ve direction    133957.079 fb      *
*      -ve direction    146342.684 fb      *
*                                          *
*        Relative PDF uncertainties        *
*      Symmetric +/-          3.69 %       *
*      +ve direction          3.98 %       *
*      -ve direction          4.35 %       *
*                                          *
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