Summary statistics for s3_1_c1_3 variable in snf_rollup2540_96_2001 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c1_3 | 5,336 90.46233 126.7212 1 8438 by Jean Roth , jroth@nber.org , 17 Feb 2018