Summary statistics for primaryid variable in reac2018q1 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |  1,206,259    1.70e+08    1.67e+08   4.12e+07   1.44e+09

by Jean Roth , jroth@nber.org , 19 Jun 2018