Summary statistics for d_4_hos_c6_40 variable in hosp_rollup2552_96_2008 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_40 | 239 7741625 1.68e+07 418 1.52e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018