Summary statistics for mfr_dt variable in demo2014q4 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      mfr_dt |    198,827    2.01e+07    3197.363   2.00e+07   2.01e+07

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