Summary statistics for a7_3_c6_4 variable in hosp_rollup2552_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c6_4 | 1,474 52532.95 96377.71 -51664 1095928 by Jean Roth , jroth@nber.org , 3 Sep 2018