Frequencies for first 10,000 rows of comstat6 variable in nhamcsopd1999 dataset :

composition |
status code |
        for |
 medication |
         #6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        412        4.12        4.12
          2 |         25        0.25        4.37
          3 |          9        0.09        4.46
          . |      9,554       95.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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