Frequencies for first 10,000 rows of ncmed12 variable in namcs2015 dataset :

         Is |
 Medication |
 #12 new or |
  continued |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |          5        0.05        0.05
         -8 |          1        0.01        0.06
         -7 |      9,491       94.91       94.97
          1 |         16        0.16       95.13
          2 |        487        4.87      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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