Summary statistics for a8_c2_41 variable in hosp_rollup2552_96_2004 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_41 | 4,560 -133330.5 2149000 -7.71e+07 4.20e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018