Frequencies for first 10,000 rows of cum_dose_unit variable in drug2014q1 dataset :

 Cumulative |
    dose to |
      first |
   reaction |
       unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,559       95.59       95.59
         GM |          4        0.04       95.63
         MG |        423        4.23       99.86
      MG/KG |          1        0.01       99.87
         ML |          9        0.09       99.96
         UG |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Apr 2017