Frequencies for first 10,000 rows of age_grp variable in demo2017q2 dataset :

  Age Group |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,639       56.39       56.39
          A |      1,976       19.76       76.15
          C |      1,154       11.54       87.69
          E |        661        6.61       94.30
          I |         16        0.16       94.46
          N |         31        0.31       94.77
          T |        523        5.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 Feb 2018