Summary statistics for a_c2_9 variable in snf_rollup2540_96_2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_9 |      8,657    67799.43    130347.8    -110755    2454379

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