Summary statistics for b_1_c18_36 variable in snf_rollup2540_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_36 | 74 483278.4 1367086 -23924 1.00e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018