Summary statistics for d_4_irf_c3_200 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_irf_c3~0 | 308 658196.6 953848.2 -26 6176251 by Jean Roth , jroth@nber.org , 24 Aug 2018