Summary statistics for d4_hos_c2_58 variable in hosp_rollup2552_96_1997 dataset Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d4_hos_c2_58 | 591 275881 991230.9 -231389 1.68e+07 by Jean Roth , jroth@nber.org , 5 Sep 2018