Summary statistics for a_c1_23 variable in snf_rollup2540_96_2001 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c1_23 |          4      7469.5    9177.276         43      19284

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