Summary statistics for a_c6_19 variable in hosp_rollup2552_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_19 | 464 -3873246 1.59e+07 -1.62e+08 4.68e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018