Summary statistics for mfr_dt variable in demo2018q3 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      mfr_dt |    394,810    2.02e+07    6911.473   1.90e+07   2.02e+07

by Jean Roth , jroth@nber.org , 7 Mar 2019