Summary statistics for s3_1_c19_3 variable in snf_rollup2540_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c19_3 | 1,265 54.39289 80.06128 1 1689 by Jean Roth , jroth@nber.org , 17 Feb 2018