Frequencies for first 10,000 rows of age_grp variable in demo2017q1 dataset :

  Age Group |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,849       78.49       78.49
          A |      1,133       11.33       89.82
          C |        251        2.51       92.33
          E |        599        5.99       98.32
          I |          4        0.04       98.36
          N |         53        0.53       98.89
          T |        111        1.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Sep 2017