Frequencies for first 10,000 rows of isnewplan variable in plan2015 dataset :

New/Existin |
     g Plan |      Freq.     Percent        Cum.
------------+-----------------------------------
   Existing |      4,481       44.81       44.81
        New |      5,519       55.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 9 Dec 2017