Summary statistics for g_c1thr4_55 variable in snf_rollup2540_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g_c1thr4_55 | 12 5189080 1.43e+07 1 5.06e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018