Frequencies for first 10,000 rows of comstat1 variable in namcs1999 dataset :

composition |
status code |
        for |
 medication |
         #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,204       52.04       52.04
          2 |        872        8.72       60.76
          3 |        282        2.82       63.58
          . |      3,642       36.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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