Summary statistics for b_1_c18_23 variable in snf_rollup2540_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_23 | 4,453 34429.26 50700.67 -14043 757614 by Jean Roth , jroth@nber.org , 17 Feb 2018