Frequencies for first 10,000 rows of planeffectivedate variable in plan2017 dataset :

       Plan |
  Effective |
       Date |      Freq.     Percent        Cum.
------------+-----------------------------------
 2017-01-01 |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 Dec 2017