Frequencies for first 10,000 rows of comstat26 variable in namcs2014 dataset :

Composition status |
          code for |
    medication #26 |      Freq.     Percent        Cum.
-------------------+-----------------------------------
Single entity drug |         17        0.17        0.17
  Combination drug |          1        0.01        0.18
                 . |      9,982       99.82      100.00
-------------------+-----------------------------------
             Total |     10,000      100.00

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