Summary statistics for a_c2_4 variable in snf_rollup2540_96_2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_4 |     13,998     1020480    895424.5  -2.70e+07   1.36e+07

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