Frequencies for first 10,000 rows of ager variable in namcs2005 dataset :

       age recode |      Freq.     Percent        Cum.
------------------+-----------------------------------
   Under 15 years |      2,881       28.81       28.81
      15-24 years |        735        7.35       36.16
      25-44 years |      1,766       17.66       53.82
      45-64 years |      2,624       26.24       80.06
      65-74 years |        973        9.73       89.79
75 years and over |      1,021       10.21      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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