Summary statistics for a_c2_59 variable in snf_rollup2540_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_59 | 5,348 14710.13 226017.9 -37632 1.49e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018