Frequencies for first 10,000 rows of ncmed30 variable in namcs2015 dataset :

         Is |
 Medication |
 #30 new or |
  continued |      Freq.     Percent        Cum.
------------+-----------------------------------
         -7 |      9,996       99.96       99.96
          2 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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