Summary statistics for a_c6_56 variable in hosp_rollup2552_96_2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_56 | 1,154 -222177.6 2735263 -6.26e+07 4.32e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018