Frequencies for first 10,000 rows of comstat27 variable in nhamcsed2014 dataset :

Composition status |
          code for |
    medication #27 |      Freq.     Percent        Cum.
-------------------+-----------------------------------
Single entity drug |          4        0.04        0.04
                 . |      9,996       99.96      100.00
-------------------+-----------------------------------
             Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017