Summary statistics for b_1_c18_43 variable in snf_rollup2540_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_43 | 178 482414.4 2350925 -1280 2.90e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018