Summary statistics for b_1_c0_30 variable in hosp_rollup2552_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c0_30 | 704 3376121 4706569 -284836 5.97e+07 by Jean Roth , jroth@nber.org , 7 Sep 2018