Summary statistics for a_c2_63 variable in snf_rollup2540_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_63 | 1,659 114023.7 612108.3 -112408 1.11e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018