Summary statistics for b_1_c18_56 variable in snf_rollup2540_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_56 | 32 1227041 3666457 -40665 2.09e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018