Summary statistics for a_c2_18 variable in snf_rollup2540_96_2002 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_18 |      2,620    178144.7    280957.7     -19561    4797768

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