Summary statistics for s3_1_c22_3 variable in snf_rollup2540_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c22_3 | 1,107 58.48055 49.21939 .1 542.26 by Jean Roth , jroth@nber.org , 17 Feb 2018