Summary statistics for a_c2_3 variable in hosp_rollup2552_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_3 | 4,826 3505584 7484479 -1.33e+07 1.55e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018