Frequencies for first 10,000 rows of comstat1 variable in nhamcsopd2002 dataset :

composition |
status code |
        for |
 medication |
         #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,504       45.04       45.04
          2 |        888        8.88       53.92
          3 |        228        2.28       56.20
          . |      4,380       43.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016