Summary statistics for a_c1_63 variable in snf_rollup2540_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c1_63 | 1,387 235224.6 775341.5 -3863 1.61e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018