Frequencies for first 10,000 rows of role_cod variable in drug2017q3 dataset :

   Code for |
     drug's |
   reported |
    role in |
      event |      Freq.     Percent        Cum.
------------+-----------------------------------
          C |      5,086       50.86       50.86
          I |        100        1.00       51.86
         PS |      1,385       13.85       65.71
         SS |      3,429       34.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 Feb 2018