Frequencies for first 10,000 rows of age_cod variable in demo2013q4 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
        age |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,475       34.75       34.75
        DEC |          8        0.08       34.83
         DY |         53        0.53       35.36
        MON |         49        0.49       35.85
         WK |          3        0.03       35.88
         YR |      6,412       64.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 6 Apr 2017