Summary statistics for b_1_c12_16 variable in snf_rollup2540_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c12_16 | 7,604 23542.3 240737.1 3 2.02e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018