Frequencies for first 10,000 rows of age_cod variable in demo2017q4 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
        age |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,705       27.05       27.05
        DEC |         36        0.36       27.41
         DY |         82        0.82       28.23
        MON |         68        0.68       28.91
         WK |          6        0.06       28.97
         YR |      7,103       71.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Jun 2018