Summary statistics for a8_c2_39 variable in hosp_rollup2552_96_2006 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_39 | 5,022 -290113.2 3124203 -7.21e+07 8.18e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018