Summary statistics for a_c6_56 variable in hosp_rollup2552_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_56 | 1,845 -186792.7 1674598 -3.59e+07 2.57e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018