Summary statistics for c_1_c5_31 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c5_31 | 3,051 8629263 1.17e+07 5770 1.63e+08 by Jean Roth , jroth@nber.org , 24 Aug 2018