Summary statistics for primaryid variable in ther2013q2 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    237,997    9.58e+07    5.63e+07   3.30e+07   9.23e+08

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