Frequencies for first 10,000 rows of comstat4 variable in namcs2004 dataset :

composition |
status code |
        for |
 medication |
         #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,118       11.18       11.18
          2 |        146        1.46       12.64
          3 |         38        0.38       13.02
          . |      8,698       86.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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