Summary statistics for d_4_hos_c6_68 variable in hosp_rollup2552_96_1998 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_68 | 31 68245.32 191375.6 84 1000000 by Jean Roth , jroth@nber.org , 20 Jan 2017