Frequencies for first 10,000 rows of cum_dose_unit variable in drug2013q1 dataset :

 Cumulative |
    dose to |
      first |
   reaction |
       unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,801       98.01       98.01
         DF |          5        0.05       98.06
         GM |          1        0.01       98.07
         IU |          1        0.01       98.08
         MG |        155        1.55       99.63
      MG/KG |         10        0.10       99.73
    MG/M**2 |         12        0.12       99.85
         ML |          3        0.03       99.88
         UG |         10        0.10       99.98
      UG/KG |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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