Frequencies for first 10,000 rows of ager variable in nhamcsed2003 dataset :

       age recode |      Freq.     Percent        Cum.
------------------+-----------------------------------
   under 15 years |      1,880       18.80       18.80
      15-24 years |      1,570       15.70       34.50
      25-44 years |      3,086       30.86       65.36
      45-64 years |      1,991       19.91       85.27
      65-74 years |        644        6.44       91.71
75 years and over |        829        8.29      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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