Summary statistics for d3_hos_c2_30 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d3_hos_c2_30 | 6,020 1.62e+07 3.84e+07 1 9.03e+08 by Jean Roth , jroth@nber.org , 24 Aug 2018