Frequencies for first 10,000 rows of val_vbm variable in drug2005q4 dataset :

   Code for |
  source of |
   DRUGNAME |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,891       68.91       68.91
          2 |      3,109       31.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Dec 2015