Frequencies for first 10,000 rows of comstat1 variable in namcs1998 dataset :

composition |
status code |
        for |
 medication |
         #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,076       50.76       50.76
          2 |      1,172       11.72       62.48
          3 |        253        2.53       65.01
          . |      3,499       34.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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