Summary statistics for s3_1_c22_3 variable in snf_rollup2540_96_2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c22_3 | 78 53.89782 64.87909 .83 338.53 by Jean Roth , jroth@nber.org , 17 Feb 2018