Summary statistics for a_c1_12 variable in snf_rollup2540_96_2003 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c1_12 |      8,673    36102.65    39170.12      -3530    1206263

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