Frequencies for first 10,000 rows of ager variable in namcs2008 dataset :

       age recode |      Freq.     Percent        Cum.
------------------+-----------------------------------
   under 15 years |      2,749       27.49       27.49
      15-24 years |        795        7.95       35.44
      25-44 years |      1,766       17.66       53.10
      45-64 years |      2,620       26.20       79.30
      65-74 years |      1,034       10.34       89.64
75 years and over |      1,036       10.36      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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