Frequencies for first 10,000 rows of ager variable in nhamcsed2008 dataset :

       age recode |      Freq.     Percent        Cum.
------------------+-----------------------------------
   under 15 years |      1,730       17.30       17.30
      15-24 years |      1,507       15.07       32.37
      25-44 years |      2,847       28.47       60.84
      45-64 years |      2,196       21.96       82.80
      65-74 years |        668        6.68       89.48
75 years and over |      1,052       10.52      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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