Summary statistics for a_c6_28 variable in snf_rollup2540_96_2006 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c6_28 |          2       -2590    3015.103      -4722       -458

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