Summary statistics for a_c2_12 variable in snf_rollup2540_96_2006 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_12 |      7,604    6388.013    13246.94     -18844     389772

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