Summary statistics for a8_c2_38 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_38 | 5,330 -490547.4 6773799 -1.44e+08 3.03e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018