Frequencies for first 10,000 rows of cum_dose_unit variable in drug2015q2 dataset :

 Cumulative |
    dose to |
      first |
   reaction |
       unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,626       96.26       96.26
         DF |          4        0.04       96.30
          G |         11        0.11       96.41
         IU |          2        0.02       96.43
         MG |        342        3.42       99.85
      MG/KG |          9        0.09       99.94
      MG/M2 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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