Summary statistics for d3_irf_c2_73 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d3_irf_c2_73 | 888 1076191 1304915 1731 1.76e+07 by Jean Roth , jroth@nber.org , 24 Aug 2018