Summary statistics for d_4_hos_c6_38 variable in hosp_rollup2552_96_2006 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_38 | 64 2258150 4584645 9155 3.02e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018