Frequencies for first 10,000 rows of ager variable in namcs2014 dataset :

      Patient age |
           recode |      Freq.     Percent        Cum.
------------------+-----------------------------------
   Under 15 years |      1,442       14.42       14.42
      15-24 years |        609        6.09       20.51
      25-44 years |      1,875       18.75       39.26
      45-64 years |      2,972       29.72       68.98
      65-74 years |      1,652       16.52       85.50
75 years and over |      1,450       14.50      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017