Summary statistics for wvd_test_vol_cnt variable in posclia2012 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
wvd_test_v~t |    417,354    6667.136     2329318          0   1.50e+09

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