Summary statistics for d_4_hos_c6_44 variable in hosp_rollup2552_96_2004 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_44 | 92 2.23e+08 2.49e+08 275142 1.40e+09 by Jean Roth , jroth@nber.org , 21 Apr 2018