Summary statistics for mfr_dt variable in demo2015q1 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      mfr_dt |    307,346    2.01e+07    9157.944   1.99e+07   2.02e+07

by Jean Roth , jroth@nber.org , 6 Apr 2017