Summary statistics for a_c1_50 variable in hosp_rollup2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c1_50 | 4,689 602373.7 824236.2 -1027 1.23e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018