Summary statistics for d4_hos_c2_42 variable in hosp_rollup2552_96_1996 dataset Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d4_hos_c2_42 | 980 225916.9 705037.1 12 1.58e+07 by Jean Roth , jroth@nber.org , 3 Sep 2018