Frequencies for first 10,000 rows of age_cod variable in demo2008q1 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
        age |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      4,430       44.30       44.30
        DEC |         14        0.14       44.44
         DY |         81        0.81       45.25
         HR |          1        0.01       45.26
        MON |         86        0.86       46.12
         WK |          4        0.04       46.16
         YR |      5,384       53.84      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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