Frequencies for first 10,000 rows of comstat3 variable in namcs1993 dataset :

composition |
status code |
        for |
 medication |
         #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,475       14.75       14.75
          2 |        262        2.62       17.37
          3 |         83        0.83       18.20
          . |      8,180       81.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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