Summary statistics for a_c2_98 variable in hosp_rollup2552_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_98 | 1,924 791911.4 4712880 -1065543 1.78e+08 by Jean Roth , jroth@nber.org , 5 Sep 2018