Summary statistics for a_c2_39 variable in hosp_rollup2552_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_39 | 2,552 512368.8 896591.5 -5220094 1.07e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018