Frequencies for first 10,000 rows of comstat18 variable in namcs2015 dataset :

Composition |
status code |
        for |
 medication |
        #18 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         89        0.89        0.89
          2 |          4        0.04        0.93
          3 |          2        0.02        0.95
          . |      9,905       99.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017