Summary statistics for a_c2_9 variable in snf_rollup2540_96_2003 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_9 |      8,285    57233.38    113018.3    -179542    1906958

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