Summary statistics for d_4_hos_c6_42 variable in hosp_rollup2552_96_2007 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_42 | 73 2030580 2773189 528 1.44e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018