Summary statistics for s3_1_c12_3 variable in snf_rollup2540_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c12_3 | 1,649 91.11401 94.57881 1 1192 by Jean Roth , jroth@nber.org , 17 Feb 2018