Frequencies for first 10,000 rows of age_cod variable in demo2013q1 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
        age |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,026       30.26       30.26
        DEC |         16        0.16       30.42
         DY |         39        0.39       30.81
         HR |          3        0.03       30.84
        MON |         33        0.33       31.17
         WK |          4        0.04       31.21
         YR |      6,879       68.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Apr 2017