Summary statistics for a_c6_40 variable in snf_rollup2540_96_2005 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c6_40 |          4      3101.5    2302.483       -167       5243

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