Summary statistics for a_c2_50 variable in hosp_rollup2552_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_50 | 5,743 423559.3 798296.7 -114142 1.92e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018