Summary statistics for indi2018q2 dataset :

by Jean Roth , jroth@nber.org , 8 Sep 2018

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |  1,428,287    1.62e+08    1.33e+08   3.62e+07   1.49e+09
      caseid |  1,428,287    1.46e+07    743779.3    3617572   1.51e+07
indi_drug_~q |  1,428,287    6.520239    8.289105          1        381
     indi_pt |          0

by Jean Roth , jroth@nber.org , 8 Sep 2018