Summary statistics for dsg_drug_seq variable in ther2010q4 dataset :

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
dsg_drug_seq |    264128    1.02e+09    191046.2   1.01e+09   1.02e+09

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