Summary statistics for s3_1_c22_3 variable in snf_rollup2540_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c22_3 | 1,611 61.84595 52.12088 .05 461.71 by Jean Roth , jroth@nber.org , 17 Feb 2018