Summary statistics for d_4_hos_c6_68 variable in hosp_rollup2552_96_1997 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_68 | 39 66749.18 176585.2 -3326 1000000 by Jean Roth , jroth@nber.org , 20 Jan 2017