Summary statistics for d_4_hos_c6_41 variable in hosp_rollup2552_96_1998 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_41 | 24 2.84e+07 2.68e+07 406200 8.40e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018