Summary statistics for wvd_test_vol_cnt variable in posclia2018 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
wvd_test_v~t |    504,763    2967.377      146802          0   1.00e+08

by Jean Roth , jroth@nber.org , 15 Feb 2019