Summary statistics for b_1_c27_40 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c27_40 | 3,784 1450398 3743537 -730253 7.35e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018