Summary statistics for b_1_c18_30 variable in snf_rollup2540_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_30 | 12,602 163541.9 220198.5 -3551 5318930 by Jean Roth , jroth@nber.org , 17 Feb 2018