Frequencies for first 10,000 rows of a_age4 variable in per_aux dataset :

age group 4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        846        8.46        8.46
          2 |      1,018       10.18       18.64
          3 |      1,018       10.18       28.82
          4 |      1,775       17.75       46.57
          5 |      1,442       14.42       60.99
          6 |      2,505       25.05       86.04
          7 |      1,129       11.29       97.33
          8 |        267        2.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016