Summary statistics for b_1_c18_21 variable in snf_rollup2540_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
  b_1_c18_21 |      3,767    28309.03    52207.74      -6631    2437150

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