Summary statistics for e4_c1_42 variable in prds_hosp10_yr2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- e4_c1_42 | 490 2.14e+07 2.55e+07 102 2.78e+08 by Jean Roth , jroth@nber.org , 24 Aug 2018