Frequencies for first 10,000 rows of ager variable in nhamcsed2006 dataset :

       age recode |      Freq.     Percent        Cum.
------------------+-----------------------------------
   under 15 years |      2,320       23.20       23.20
      15-24 years |      1,580       15.80       39.00
      25-44 years |      2,671       26.71       65.71
      45-64 years |      1,975       19.75       85.46
      65-74 years |        606        6.06       91.52
75 years and over |        848        8.48      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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