Summary statistics for b_1_c27_98 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c27_98 | 3,134 4879088 2.55e+07 -2404554 1.02e+09 by Jean Roth , jroth@nber.org , 21 Apr 2018