Summary statistics for a_c6_3 variable in hosp_rollup2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_3 | 4,615 -76638.64 1428777 -1.18e+07 3.81e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018