Summary statistics for mfr_dt variable in demo2018q2 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      mfr_dt |    440,240    2.02e+07     9319.98   1.90e+07   2.02e+07

by Jean Roth , jroth@nber.org , 8 Sep 2018