Summary statistics for d_4_hos_c2_50 variable in hosp_rollup2552_96_1999 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~2_50 | 90 139576.1 268193.2 1 1657652 by Jean Roth , jroth@nber.org , 7 Sep 2018