Summary statistics for a_c6_1 variable in snf_rollup2540_96_2002 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_1 | 10,035 -55508.18 381845.7 -1.15e+07 4874979 by Jean Roth , jroth@nber.org , 17 Feb 2018