Summary statistics for primaryid variable in ther2016q3 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    485,321    1.41e+08    1.23e+08   3.84e+07   1.26e+09

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