Summary statistics for d_4_hos_c6_53 variable in hosp_rollup2552_96_1997 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_53 | 5 4.00e+07 4.27e+07 4582104 1.06e+08 by Jean Roth , jroth@nber.org , 5 Sep 2018