Frequencies for first 10,000 rows of comstat3 variable in nhamcsopd1994 dataset :

composition |
status code |
        for |
 medication |
         #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,343       13.43       13.43
          2 |        154        1.54       14.97
          3 |        110        1.10       16.07
          . |      8,393       83.93      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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