Frequencies for first 10,000 rows of dur_cod variable in ther2008q3 dataset :

       Unit |
abbreviatio |
      n for |
duration of |
    therapy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,458       74.58       74.58
        DAY |      1,903       19.03       93.61
         HR |         32        0.32       93.93
        MIN |         41        0.41       94.34
        MON |        212        2.12       96.46
         WK |        116        1.16       97.62
         YR |        238        2.38      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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