Summary statistics for b_1_c18_25 variable in snf_rollup2540_96_2006 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_25 | 12,868 274360.4 246074.5 -411431 3327983 by Jean Roth , jroth@nber.org , 17 Feb 2018