Summary statistics for b_1_c13_16 variable in snf_rollup2540_96_2004 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c13_16 | 12,219 203830 258104.5 17 1.03e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018