Frequencies for first 10,000 rows of prescr9 variable in namcs2015 dataset :

Prescriptio |
   n status |
   code for |
 medication |
         #9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        658        6.58        6.58
          2 |         46        0.46        7.04
          3 |         23        0.23        7.27
          5 |        312        3.12       10.39
          . |      8,961       89.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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