Summary statistics for b_1_c18_33 variable in snf_rollup2540_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_33 | 3,247 34550.96 225721 -21076 1.07e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018