Summary statistics for d_4_irf_c2_200 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_irf_c2~0 | 78 407897.8 374746.7 132 1410180 by Jean Roth , jroth@nber.org , 24 Aug 2018