Summary statistics for indi2009q4 dataset :

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

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
   primaryid |    249515     6451465     41154.4    6253237    6710716
indi_drug_~q |    249515    1.01e+09    156290.1   1.01e+09   1.01e+09
     indi_pt |         0

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