Summary statistics for d_4_hos_c6_56 variable in hosp_rollup2552_96_2003 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_56 | 105 2.23e+07 1.95e+07 453166 9.77e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018