Frequencies for a_age2 variable in per_aux dataset :

AGE Group 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        135        9.08        9.08
          2 |        210       14.13       23.22
          3 |        175       11.78       34.99
          4 |        295       19.85       54.85
          5 |        575       38.69       93.54
          6 |         96        6.46      100.00
------------+-----------------------------------
      Total |      1,486      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016