Summary statistics for s3_1_c4_18 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c4_18 | 1,363 10560.91 14938.22 12 225578 by Jean Roth , jroth@nber.org , 21 Apr 2018