Summary statistics for d_4_hos_c6_44 variable in hosp_rollup2552_96_2002 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_44 | 79 2.23e+08 1.95e+08 6331556 9.43e+08 by Jean Roth , jroth@nber.org , 10 Sep 2018