Summary statistics for b_1_c18_38 variable in snf_rollup2540_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_38 | 140 775523.5 2217963 -2563 2.08e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018