Summary statistics for d_4_ipf_c4_200 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_ipf_c4~0 | 5 337199.8 182391.4 131666 493988 by Jean Roth , jroth@nber.org , 24 Aug 2018