Frequencies for first 10,000 rows of comstat3 variable in namcs1994 dataset :

composition |
status code |
        for |
 medication |
         #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,873       18.73       18.73
          2 |        287        2.87       21.60
          3 |         84        0.84       22.44
          . |      7,756       77.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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