Summary statistics for b_1_c18_30 variable in snf_rollup2540_96_2000 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_30 | 12,275 145369.6 216802.1 -11573 7161439 by Jean Roth , jroth@nber.org , 17 Feb 2018