Summary statistics for e3_3_irf_c1_9 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- e3_3_irf_~_9 | 91 2.758022 2.672846 .06 18.26 by Jean Roth , jroth@nber.org , 24 Aug 2018