Summary statistics for d4_hos_c2_39 variable in hosp_rollup2552_96_2003 dataset Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d4_hos_c2_39 | 1,997 45862.19 592568.4 1 2.32e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018