Summary statistics for indi2014q1 dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    582,518    1.00e+08    3.97e+07   3.72e+07   9.78e+08
      caseid |    582,518     9825905    361211.5    3721808   1.05e+07
indi_drug_~q |    582,518    4.038074    5.423557          1        189
     indi_pt |          0

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