Summary statistics for d_4_irf_c2_200 variable in prds_hosp10_yr2012 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_irf_c2~0 | 80 367419.3 376318.1 3904 2053457 by Jean Roth , jroth@nber.org , 24 Aug 2018