Summary statistics for s3_1_c15_8 variable in snf_rollup2540_96_2002 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c15_8 | 2 128.945 130.4258 36.72 221.17 by Jean Roth , jroth@nber.org , 17 Feb 2018