Summary statistics for g2_2_c2_15 variable in snf_rollup2540_96_2006 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g2_2_c2_15 | 12,928 7430873 7331946 -174844 1.82e+08 by Jean Roth , jroth@nber.org , 17 Feb 2018