Summary statistics for s3_1_c12_3 variable in snf_rollup2540_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c12_3 | 7,221 98.29774 473.5712 1 29103 by Jean Roth , jroth@nber.org , 17 Feb 2018