Frequencies for first 10,000 rows of prescr27 variable in namcs2015 dataset :

Prescriptio |
   n status |
   code for |
 medication |
        #27 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          4        0.04        0.04
          5 |          5        0.05        0.09
          . |      9,991       99.91      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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