Summary statistics for a_c6_30 variable in snf_rollup2540_96_2001 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c6_30 |      1,841    60716.77    207960.4    -721491    1866104

by Jean Roth , jroth@nber.org , 17 Feb 2018