Frequencies for first 10,000 rows of prescr5 variable in namcs2015 dataset :

Prescriptio |
   n status |
   code for |
 medication |
         #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,760       17.60       17.60
          2 |         97        0.97       18.57
          3 |         56        0.56       19.13
          5 |        659        6.59       25.72
          . |      7,428       74.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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