Summary statistics for e3_3_irf_c1_30 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- e3_3_irf_~30 | 22 -626308.4 337496.8 -1424867 -71185 by Jean Roth , jroth@nber.org , 24 Aug 2018