Summary statistics for a_c2_5 variable in snf_rollup2540_96_2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_5 |     13,992    345444.5    411249.3     -29417   1.29e+07

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