Summary statistics for d_4_hos_c1_61 variable in hosp_rollup2552_96_1997 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~1_61 | 2 15484.5 9293.504 8913 22056 by Jean Roth , jroth@nber.org , 5 Sep 2018