Frequencies for first 10,000 rows of val_vbm variable in drug2018q1 dataset :

   Code for |
  source of |
   DRUGNAME |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,754       97.54       97.54
          2 |        246        2.46      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Jun 2018