Summary statistics for d_4_hos_c6_41 variable in hosp_rollup2552_96_1997 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_41 | 5 2.97e+07 2.25e+07 1.18e+07 6.74e+07 by Jean Roth , jroth@nber.org , 5 Sep 2018