Summary statistics for agrmt_extnsn_dt variable in pos2012 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
agrmt_e~n_dt |        297    2.00e+07    85620.21   1.99e+07   2.01e+07

by Jean Roth , jroth@nber.org , 26 Jan 2016