Summary statistics for g_c1thr4_30 variable in snf_rollup2540_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g_c1thr4_30 | 1,342 596785.4 4436366 -2.23e+07 7.22e+07 by Jean Roth , jroth@nber.org , 17 Feb 2018