Summary statistics for mfr_dt variable in demo2004q3 dataset :

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      mfr_dt |     70115    2.00e+07    299383.2   1.98e+07   7.68e+07

by Jean Roth , jroth@nber.org , 18 Dec 2015