Summary statistics for indi2013q1 dataset :

by Jean Roth , jroth@nber.org , 7 Apr 2017

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    454,435    9.20e+07    3.44e+07   3.04e+07   8.93e+08
      caseid |    454,435     9021786    292788.5    3037529    9819975
indi_drug_~q |    454,435    3.873617    5.721022          1        171
     indi_pt |          0

by Jean Roth , jroth@nber.org , 7 Apr 2017