Summary statistics for b_1_c18_60 variable in snf_rollup2540_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_60 | 536 211323.6 1048134 -2083 1.32e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018