Frequencies for first 10,000 rows of ager variable in nhamcsed2002 dataset :

       age recode |      Freq.     Percent        Cum.
------------------+-----------------------------------
   Under 15 years |      1,958       19.58       19.58
      15-24 years |      1,458       14.58       34.16
      25-44 years |      3,265       32.65       66.81
      45-64 years |      1,950       19.50       86.31
      65-74 years |        574        5.74       92.05
75 years and over |        795        7.95      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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