Summary statistics for mfr_dt variable in demo2006q1 dataset :

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      mfr_dt |     83581    2.01e+07    35595.61   1.94e+07   3.00e+07

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