Frequencies for first 10,000 rows of comstat4 variable in namcs1994 dataset :

composition |
status code |
        for |
 medication |
         #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        998        9.98        9.98
          2 |        116        1.16       11.14
          3 |         46        0.46       11.60
          . |      8,840       88.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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