Summary statistics for indi_drug_seq variable in indi2011q4 dataset :

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
indi_drug_~q |    363005    1.02e+09      221673   1.02e+09   1.02e+09

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