Frequencies for first 10,000 rows of ncmed18 variable in namcs2014 dataset :

 Is Medication |
    #18 new or |
     continued |      Freq.     Percent        Cum.
---------------+-----------------------------------
         Blank |         40        0.40        0.40
Not applicable |      9,876       98.76       99.16
           New |          4        0.04       99.20
     Continued |         80        0.80      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017