Summary statistics for a_c2_40 variable in snf_rollup2540_96_2008 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_40 |         77    20994.25    40488.23         31     307831

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