Summary statistics for b_1_c18_43 variable in snf_rollup2540_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_43 | 221 441445.8 2535475 -7418 3.65e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018