Summary statistics for primaryid variable in reac2016q2 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    915,308    1.40e+08    1.28e+08   3.72e+07   1.23e+09

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