Summary statistics for a_c6_40 variable in snf_rollup2540_96_1995 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c6_40 |          3    251.6667    220.0962         -2        392

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