Summary statistics for d_4_hos_c2_63 variable in hosp_rollup2552_96_2005 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~2_63 | 33 75984.82 242026.1 198 1382531 by Jean Roth , jroth@nber.org , 21 Apr 2018