Frequencies for first 10,000 rows of prescr10 variable in namcs2015 dataset :

Prescriptio |
   n status |
   code for |
 medication |
        #10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        552        5.52        5.52
          2 |         25        0.25        5.77
          3 |         17        0.17        5.94
          5 |        234        2.34        8.28
          . |      9,172       91.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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