Frequencies for first 10,000 rows of age_grp variable in demo2014q3 dataset :

  Age Group |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,368       83.68       83.68
          A |      1,187       11.87       95.55
          C |         25        0.25       95.80
          E |        353        3.53       99.33
          I |          9        0.09       99.42
          N |         23        0.23       99.65
          T |         35        0.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 6 Apr 2017