Frequencies for first 10,000 rows of comstat3 variable in nhamcsopd1992 dataset :

Composition |
status code |
        for |
 medication |
         #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,200       12.00       12.00
          2 |        127        1.27       13.27
          3 |        118        1.18       14.45
          . |      8,555       85.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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