Summary statistics for a7_3_c5_4 variable in hosp_rollup2552_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c5_4 | 4,031 12962.89 26152.17 -52797 538108 by Jean Roth , jroth@nber.org , 5 Sep 2018