Summary statistics for a_c2_9 variable in snf_rollup2540_96_2000 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_9 |      8,240    60567.95    146363.9     -24560    3424744

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