Summary statistics for a_c2_10 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_10 | 5,989 562754.8 1061568 -2390667 1.35e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018