Frequencies for first 10,000 rows of cum_dose_unit variable in drug2013q2 dataset :

 Cumulative |
    dose to |
      first |
   reaction |
       unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,794       97.94       97.94
         DF |         15        0.15       98.09
         GM |          6        0.06       98.15
         MG |        177        1.77       99.92
    MG/M**2 |          2        0.02       99.94
         ML |          3        0.03       99.97
         UG |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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