Frequencies for first 10,000 rows of comstat2 variable in nhamcsopd2000 dataset :

composition |
status code |
        for |
 medication |
         #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,027       30.27       30.27
          2 |        441        4.41       34.68
          3 |        161        1.61       36.29
          . |      6,371       63.71      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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