Summary statistics for g_c1thr4_15 variable in snf_rollup2540_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g_c1thr4_15 | 8,446 4719158 1.30e+07 -2461656 5.20e+08 by Jean Roth , jroth@nber.org , 17 Feb 2018