Summary statistics for b_1_c27_39 variable in hosp_rollup2552_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c27_39 | 3,471 1631427 2273882 -488458 3.55e+07 by Jean Roth , jroth@nber.org , 7 Sep 2018