Summary statistics for a_c2_1 variable in snf_rollup2540_96_2003 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_1 | 12,587 524687.1 696572.8 -1895335 1.77e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018