Summary statistics for s3_1_c22_8 variable in snf_rollup2540_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c22_8 | 15 16.66067 25.32365 .86 90.9 by Jean Roth , jroth@nber.org , 17 Feb 2018