Summary statistics for c_1_c6_61 variable in prds_hosp10_yr2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_61 | 1 4.39e+07 . 4.39e+07 4.39e+07 by Jean Roth , jroth@nber.org , 24 Aug 2018