#    fragMass          pdf          cdf
     0.762677      0.18541     0.263641
      2.18461     0.171329     0.507258
      3.60654     0.130961     0.693476
      5.02847    0.0144925     0.714083
       6.4504    0.0122629      0.73152
      7.87233    0.0112068     0.747455
      9.29427    0.0113241     0.763557
      10.7162    0.0489343     0.833139
      12.1381            0     0.833139
      13.5601            0     0.833139
       14.982            0     0.833139
      16.4039            0     0.833139
      17.8259            0     0.833139
      19.2478            0     0.833139
      20.6697            0     0.833139
      22.0917            0     0.833139
      23.5136            0     0.833139
      24.9355            0     0.833139
      26.3574            0     0.833139
      27.7794            0     0.833139
      29.2013            0     0.833139
      30.6232            0     0.833139
      32.0452            0     0.833139
      33.4671            0     0.833139
       34.889     0.117348            1