Summary statistics for e_a_hos_c2_3501 variable in prds_hosp10_yr2015 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- e_a_hos_c2~1 | 2,406 .0002627 .0004324 1.00e-09 .0060644 by Jean Roth , jroth@nber.org , 24 Aug 2018