Summary statistics for g_c1thr4_31 variable in snf_rollup2540_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g_c1thr4_31 | 8,421 1840992 1.22e+07 -2.16e+07 2.09e+08 by Jean Roth , jroth@nber.org , 17 Feb 2018