Frequencies for first 10,000 rows of comstat2 variable in nhamcsopd1992 dataset :

Composition |
status code |
        for |
 medication |
         #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,107       21.07       21.07
          2 |        353        3.53       24.60
          3 |        218        2.18       26.78
          . |      7,322       73.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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