Summary statistics for b_1_c0_15 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c0_15 | 4,195 1568720 5210906 -1089131 1.01e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018