Summary statistics for d_4_ipf_c4_200 variable in prds_hosp10_yr2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_ipf_c4~0 | 3 196581.7 115668.9 124385 329994 by Jean Roth , jroth@nber.org , 24 Aug 2018