Summary statistics for a_c6_9 variable in snf_rollup2540_96_2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c6_9 |        336    4758.762    36198.84    -139780     358021

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