Summary statistics for b_1_c27_39 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c27_39 | 3,165 4063821 5465733 -13006 6.21e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018