Summary statistics for b_1_c0_4 variable in snf_rollup2540_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c0_4 | 12,659 1016868 848350.7 -451116 1.79e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018