Frequencies for first 10,000 rows of cum_dose_unit variable in drug2015q1 dataset :

 Cumulative |
    dose to |
      first |
   reaction |
       unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,713       97.13       97.13
         DF |          8        0.08       97.21
          G |          4        0.04       97.25
         MG |        268        2.68       99.93
      MG/KG |          2        0.02       99.95
         ML |          3        0.03       99.98
         UG |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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