Summary statistics for s3_1_c22_5 variable in snf_rollup2540_96_2004 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c22_5 | 47 22.10234 19.66809 1.16 92.49 by Jean Roth , jroth@nber.org , 17 Feb 2018