Summary statistics for c_1_c7_90 variable in prds_hosp10_yr2013 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c7_90 | 3,109 1.68e+07 5.32e+07 103 1.68e+09 by Jean Roth , jroth@nber.org , 24 Aug 2018