Summary statistics for e4_c1_45 variable in prds_hosp10_yr2014 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- e4_c1_45 | 1,264 9.06e+07 9.73e+07 1342 9.31e+08 by Jean Roth , jroth@nber.org , 24 Aug 2018