Summary statistics for a_c6_39 variable in hosp_rollup2552_96_2004 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_39 | 1,013 -198034.4 593590.6 -1.06e+07 804712 by Jean Roth , jroth@nber.org , 21 Apr 2018