Summary statistics for d_4_hos_c6_44 variable in hosp_rollup2552_96_2006 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_44 | 109 2.72e+08 3.25e+08 95662 1.90e+09 by Jean Roth , jroth@nber.org , 21 Apr 2018