Summary statistics for d4_snf_c3_56 variable in hosp_rollup2552_96_1999 dataset Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d4_snf_c3_56 | 2,123 139052.7 144323.7 1 1462616 by Jean Roth , jroth@nber.org , 7 Sep 2018