Summary statistics for a8_c2_42 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_42 | 4,476 -321566.9 3565734 -1.04e+08 9.52e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018