Summary statistics for d4_snf_c2_56 variable in hosp_rollup2552_96_2009 dataset Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d4_snf_c2_56 | 1,026 789574.4 1103128 1 9056189 by Jean Roth , jroth@nber.org , 21 Apr 2018