Frequencies for first 10,000 rows of comstat25 variable in nhamcsed2014 dataset :

Composition status |
          code for |
    medication #25 |      Freq.     Percent        Cum.
-------------------+-----------------------------------
Single entity drug |          9        0.09        0.09
                 . |      9,991       99.91      100.00
-------------------+-----------------------------------
             Total |     10,000      100.00

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