Summary statistics for s3_1_c4_18 variable in hosp_rollup2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c4_18 | 2,107 20994.25 32230.72 3 441101 by Jean Roth , jroth@nber.org , 6 Sep 2018