Summary statistics for indi2011q4 dataset :

by Jean Roth , jroth@nber.org , 18 Dec 2015

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
   primaryid |    363005     7911482    69096.73    7586431    8158462
indi_drug_~q |    363005    1.02e+09      221673   1.02e+09   1.02e+09
     indi_pt |         0

by Jean Roth , jroth@nber.org , 18 Dec 2015