Frequencies for first 10,000 rows of isnewplan variable in plan2018 dataset :

New/Existin |
     g Plan |      Freq.     Percent        Cum.
------------+-----------------------------------
   Existing |      5,909       59.09       59.09
        New |      4,089       40.89       99.98
   existing |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 23 May 2018