Summary statistics for primaryid variable in reac2014q3 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    668,091    1.14e+08    9.44e+07   3.04e+07   1.03e+09

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