Frequencies for first 10,000 rows of comstat4 variable in namcs2000 dataset :

composition |
status code |
        for |
 medication |
         #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,066       10.66       10.66
          2 |        122        1.22       11.88
          3 |         42        0.42       12.30
          . |      8,770       87.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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