Summary statistics for form_1557_test_vol_cnt variable in posclia2017 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
form_1557_~t |    487,450    3685.605    179478.7          0   7.57e+07

by Jean Roth , jroth@nber.org , 9 Jan 2018