Summary statistics for b_1_c0_4 variable in snf_rollup2540_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c0_4 | 12,770 1087396 916360.1 -1697187 1.61e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018