Summary statistics for a_c6_9 variable in snf_rollup2540_96_1999 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c6_9 |      2,366    -3182.78    41348.42   -1370112     387193

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