Summary statistics for g_c1thr4_20 variable in snf_rollup2540_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g_c1thr4_20 | 4,669 232657.5 1251530 -1.51e+07 4.78e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018