Summary statistics for d_4_hos_c6_46 variable in hosp_rollup2552_96_2009 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_46 | 75 2180482 3271556 518 1.65e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018