Frequencies for first 10,000 rows of comstat1 variable in namcs1993 dataset :

composition |
status code |
        for |
 medication |
         #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,302       53.02       53.02
          2 |      1,084       10.84       63.86
          3 |        440        4.40       68.26
          . |      3,174       31.74      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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