Summary statistics for a8_c2_39 variable in hosp_rollup2552_96_2004 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_39 | 4,975 -257423.1 2467714 -7.21e+07 6.50e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018