Summary statistics for b_1_c18_37 variable in snf_rollup2540_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c18_37 | 202 455317.9 1465361 -50 1.98e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018