Summary statistics for b_1_c0_68 variable in hosp_rollup2552_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c0_68 | 173 1124445 2714501 -92993 2.13e+07 by Jean Roth , jroth@nber.org , 3 Sep 2018