Summary statistics for fda_dt variable in demo2017q4 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      fda_dt |    327,848    2.02e+07    83.65746   2.02e+07   2.02e+07

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