Summary statistics for primaryid variable in reac2015q1 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    873,189    1.13e+08    7.26e+07   3.50e+07   1.07e+09

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