Frequencies for first 10,000 rows of dur_cod variable in ther2018q1 dataset :

       Unit |
abbreviatio |
      n for |
duration of |
    therapy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Jun 2018