Frequencies for first 10,000 rows of ncmed9 variable in namcs2015 dataset :

         Is |
 Medication |
  #9 new or |
 continued? |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |         10        0.10        0.10
         -8 |          3        0.03        0.13
         -7 |      8,961       89.61       89.74
          1 |         59        0.59       90.33
          2 |        967        9.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017