Summary statistics for s3_1_c12_3 variable in snf_rollup2540_96_2001 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c12_3 | 5,933 86.20125 81.95773 1 1442 by Jean Roth , jroth@nber.org , 17 Feb 2018