Summary statistics for d_4_hos_c6_48 variable in hosp_rollup2552_96_1996 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_48 | 838 972486.2 1857501 -5587 2.47e+07 by Jean Roth , jroth@nber.org , 20 Jan 2017