Summary statistics for a_c2_30 variable in snf_rollup2540_96_2006 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_30 |     11,820    189350.6    196052.5     -11663    3862993

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