Summary statistics for a8_c2_42 variable in hosp_rollup2552_96_2004 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_42 | 4,356 -147807.3 1825086 -5.81e+07 4.62e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018