Frequencies for first 10,000 rows of ncmed11 variable in namcs2015 dataset :

         Is |
 Medication |
 #11 new or |
  continued |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |          6        0.06        0.06
         -8 |          2        0.02        0.08
         -7 |      9,344       93.44       93.52
          1 |         38        0.38       93.90
          2 |        610        6.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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