Summary statistics for b_1_c0_15 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c0_15 | 4,184 1489391 4760256 -1153460 9.37e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018