Frequencies for first 10,000 rows of age_cod variable in demo2006q1 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
        age |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,903       29.03       29.03
        DEC |         14        0.14       29.17
         DY |         97        0.97       30.14
         HR |          2        0.02       30.16
        MON |         48        0.48       30.64
         WK |          8        0.08       30.72
         YR |      6,928       69.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Dec 2015