Summary statistics for a_c2_96 variable in hosp_rollup2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_96 | 1,243 588046.9 5048344 -1132050 1.37e+08 by Jean Roth , jroth@nber.org , 6 Sep 2018