Summary statistics for s3_1_c22_3 variable in snf_rollup2540_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c22_3 | 8,847 74.66737 770.2972 .04 71983.64 by Jean Roth , jroth@nber.org , 17 Feb 2018