Summary statistics for a8_c2_5 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_5 | 1,424 -203749.2 833881.7 -1.36e+07 1069367 by Jean Roth , jroth@nber.org , 21 Apr 2018