Summary statistics for d_4_hos_c6_66 variable in hosp_rollup2552_96_1997 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos_c~66 | 23 140343.8 268359.5 20 1222334 by Jean Roth , jroth@nber.org , 20 Jan 2017