Summary statistics for b_1_c18_23 variable in snf_rollup2540_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_23 | 4,038 34628.23 55590.93 -3536 870590 by Jean Roth , jroth@nber.org , 17 Feb 2018