Summary statistics for b_1_c18_30 variable in snf_rollup2540_96_2008 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
  b_1_c18_30 |     13,978      250670    275565.8    -386997    5709137

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