Summary statistics for primaryid variable in ther2013q3 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    251,855    9.89e+07    6.46e+07   3.44e+07   9.38e+08

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