Summary statistics for a8_c2_4 variable in hosp_rollup2552_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_4 | 1,073 -161132.9 589847.3 -1.04e+07 1361719 by Jean Roth , jroth@nber.org , 21 Apr 2018