Summary statistics for a_c6_9 variable in snf_rollup2540_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c6_9 |      2,483   -2858.966    28556.58    -363975     953054

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