Summary statistics for a8_c2_37 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_37 | 5,755 -1106047 9168547 -1.21e+08 3.87e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018