Frequencies for first 10,000 rows of ager variable in nhamcsed2015 dataset :

       Age recode |      Freq.     Percent        Cum.
------------------+-----------------------------------
   Under 15 years |      1,750       17.50       17.50
      15-24 years |      1,538       15.38       32.88
      25-44 years |      2,846       28.46       61.34
      45-64 years |      2,226       22.26       83.60
      65-74 years |        711        7.11       90.71
75 years and over |        929        9.29      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017