Summary statistics for b_1_c27_30 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c27_30 | 843 1.77e+07 3.08e+07 38871 3.07e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018