Summary statistics for b_1_c18_33 variable in snf_rollup2540_96_2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_33 | 461 52060.92 533473.4 -675 1.14e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018